425937791 has 4 divisors (see below), whose sum is σ = 426320232. Its totient is φ = 425555352.

The previous prime is 425937781. The next prime is 425937847. The reversal of 425937791 is 197739524.

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 425937791 - 2¹⁸ = 425675647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425937731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189545 + ... + 191778.

It is an arithmetic number, because the mean of its divisors is an integer number (106580058).

Almost surely, 2^425937791 is an apocalyptic number.

425937791 is a deficient number, since it is larger than the sum of its proper divisors (382441).

425937791 is a wasteful number, since it uses less digits than its factorization.

425937791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382440.

The product of its digits is 476280, while the sum is 47.

The square root of 425937791 is about 20638.2603675794. The cubic root of 425937791 is about 752.3998923499.

The spelling of 425937791 in words is "four hundred twenty-five million, nine hundred thirty-seven thousand, seven hundred ninety-one".