64064831 has 2 divisors, whose sum is σ = 64064832. Its totient is φ = 64064830.

The previous prime is 64064809. The next prime is 64064839. The reversal of 64064831 is 13846046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64064831 - 2¹⁰ = 64063807 is a prime.

It is a super-2 number, since 2×64064831² = 8208605142117122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64064839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32032415 + 32032416.

It is an arithmetic number, because the mean of its divisors is an integer number (32032416).

Almost surely, 2^64064831 is an apocalyptic number.

64064831 is a deficient number, since it is larger than the sum of its proper divisors (1).

64064831 is an equidigital number, since it uses as much as digits as its factorization.

64064831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 64064831 is about 8004.0509118821. The cubic root of 64064831 is about 400.1350190029.

The spelling of 64064831 in words is "sixty-four million, sixty-four thousand, eight hundred thirty-one".