64073431 has 2 divisors, whose sum is σ = 64073432. Its totient is φ = 64073430.

The previous prime is 64073413. The next prime is 64073437. The reversal of 64073431 is 13437046.

Together with previous prime (64073413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64073431 - 2¹⁵ = 64040663 is a prime.

It is a super-2 number, since 2×64073431² = 8210809120223522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64073431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64073437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32036715 + 32036716.

It is an arithmetic number, because the mean of its divisors is an integer number (32036716).

Almost surely, 2^64073431 is an apocalyptic number.

64073431 is a deficient number, since it is larger than the sum of its proper divisors (1).

64073431 is an equidigital number, since it uses as much as digits as its factorization.

64073431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 64073431 is about 8004.5881218211. The cubic root of 64073431 is about 400.1529227791.

The spelling of 64073431 in words is "sixty-four million, seventy-three thousand, four hundred thirty-one".