64290839 has 2 divisors, whose sum is σ = 64290840. Its totient is φ = 64290838.

The previous prime is 64290799. The next prime is 64290859. The reversal of 64290839 is 93809246.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64290839 - 2¹² = 64286743 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 64290796 and 64290805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64290859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32145419 + 32145420.

It is an arithmetic number, because the mean of its divisors is an integer number (32145420).

Almost surely, 2^64290839 is an apocalyptic number.

64290839 is a deficient number, since it is larger than the sum of its proper divisors (1).

64290839 is an equidigital number, since it uses as much as digits as its factorization.

64290839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 64290839 is about 8018.1568330883. The cubic root of 64290839 is about 400.6049990623.

The spelling of 64290839 in words is "sixty-four million, two hundred ninety thousand, eight hundred thirty-nine".