431974085 has 8 divisors (see below), whose sum is σ = 523125240. Its totient is φ = 342408384.

The previous prime is 431974061. The next prime is 431974099. The reversal of 431974085 is 580479134.

It can be written as a sum of positive squares in 4 ways, for example, as 5262436 + 426711649 = 2294^2 + 20657^2 .

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-431974085 is a prime.

It is a super-2 number, since 2×431974085² = 373203220223174450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395762 + ... + 396851.

It is an arithmetic number, because the mean of its divisors is an integer number (65390655).

Almost surely, 2^431974085 is an apocalyptic number.

It is an amenable number.

431974085 is a deficient number, since it is larger than the sum of its proper divisors (91151155).

431974085 is a wasteful number, since it uses less digits than its factorization.

431974085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792727.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 431974085 is about 20783.9862634674. The cubic root of 431974085 is about 755.9375134985.

The spelling of 431974085 in words is "four hundred thirty-one million, nine hundred seventy-four thousand, eighty-five".