64476031 has 2 divisors, whose sum is σ = 64476032. Its totient is φ = 64476030.

The previous prime is 64476029. The next prime is 64476059. The reversal of 64476031 is 13067446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64476031 - 2¹ = 64476029 is a prime.

It is a super-2 number, since 2×64476031² = 8314317147025922, which contains 22 as substring.

Together with 64476029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64475984 and 64476002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64476011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32238015 + 32238016.

It is an arithmetic number, because the mean of its divisors is an integer number (32238016).

Almost surely, 2^64476031 is an apocalyptic number.

64476031 is a deficient number, since it is larger than the sum of its proper divisors (1).

64476031 is an equidigital number, since it uses as much as digits as its factorization.

64476031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 64476031 is about 8029.6968186850. The cubic root of 64476031 is about 400.9892825331.

The spelling of 64476031 in words is "sixty-four million, four hundred seventy-six thousand, thirty-one".