425336729 has 2 divisors, whose sum is σ = 425336730. Its totient is φ = 425336728.

The previous prime is 425336701. The next prime is 425336731. The reversal of 425336729 is 927633524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280495504 + 144841225 = 16748^2 + 12035^2 .

It is a cyclic number.

It is not a de Polignac number, because 425336729 - 2⁸ = 425336473 is a prime.

It is a super-2 number, since 2×425336729² = 361822666072838882, which contains 22 as substring.

Together with 425336731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (425336629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212668364 + 212668365.

It is an arithmetic number, because the mean of its divisors is an integer number (212668365).

Almost surely, 2^425336729 is an apocalyptic number.

It is an amenable number.

425336729 is a deficient number, since it is larger than the sum of its proper divisors (1).

425336729 is an equidigital number, since it uses as much as digits as its factorization.

425336729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The square root of 425336729 is about 20623.6933889156. The cubic root of 425336729 is about 752.0458094406.

The spelling of 425336729 in words is "four hundred twenty-five million, three hundred thirty-six thousand, seven hundred twenty-nine".