425612729 has 8 divisors (see below), whose sum is σ = 440733000. Its totient is φ = 410522112.

The previous prime is 425612717. The next prime is 425612741. The reversal of 425612729 is 927216524.

It is an interprime number because it is at equal distance from previous prime (425612717) and next prime (425612741).

It can be written as a sum of positive squares in 4 ways, for example, as 42510400 + 383102329 = 6520^2 + 19573^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425612729 - 2¹⁶ = 425547193 is a prime.

It is a super-2 number, since 2×425612729² = 362292390173654882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 425612692 and 425612701.

It is not an unprimeable number, because it can be changed into a prime (425612779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24137 + ... + 37865.

It is an arithmetic number, because the mean of its divisors is an integer number (55091625).

Almost surely, 2^425612729 is an apocalyptic number.

It is an amenable number.

425612729 is a deficient number, since it is larger than the sum of its proper divisors (15120271).

425612729 is a wasteful number, since it uses less digits than its factorization.

425612729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14827.

The product of its digits is 60480, while the sum is 38.

The square root of 425612729 is about 20630.3836367626. The cubic root of 425612729 is about 752.2084411857.

The spelling of 425612729 in words is "four hundred twenty-five million, six hundred twelve thousand, seven hundred twenty-nine".