424790857 has 8 divisors (see below), whose sum is σ = 427781952. Its totient is φ = 421810800.

The previous prime is 424790833. The next prime is 424790867. The reversal of 424790857 is 758097424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424790857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424790827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83682 + ... + 88612.

It is an arithmetic number, because the mean of its divisors is an integer number (53472744).

Almost surely, 2^424790857 is an apocalyptic number.

It is an amenable number.

424790857 is a deficient number, since it is larger than the sum of its proper divisors (2991095).

424790857 is a wasteful number, since it uses less digits than its factorization.

424790857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519.

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 424790857 is about 20610.4550410708. The cubic root of 424790857 is about 751.7239495536.

The spelling of 424790857 in words is "four hundred twenty-four million, seven hundred ninety thousand, eight hundred fifty-seven".