425742859 has 4 divisors (see below), whose sum is σ = 427399704. Its totient is φ = 424086016.

The previous prime is 425742847. The next prime is 425742887. The reversal of 425742859 is 958247524.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 425742859 - 2⁹ = 425742347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425742659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 828037 + ... + 828550.

It is an arithmetic number, because the mean of its divisors is an integer number (106849926).

Almost surely, 2^425742859 is an apocalyptic number.

425742859 is a deficient number, since it is larger than the sum of its proper divisors (1656845).

425742859 is a wasteful number, since it uses less digits than its factorization.

425742859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656844.

The product of its digits is 806400, while the sum is 46.

The square root of 425742859 is about 20633.5372391648. The cubic root of 425742859 is about 752.2850953077.

The spelling of 425742859 in words is "four hundred twenty-five million, seven hundred forty-two thousand, eight hundred fifty-nine".