64990935 has 24 divisors (see below), whose sum is σ = 113380800. Its totient is φ = 34437312.

The previous prime is 64990927. The next prime is 64990957. The reversal of 64990935 is 53909946.

It is a happy number.

It is not a de Polignac number, because 64990935 - 2³ = 64990927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2466 + ... + 11664.

It is an arithmetic number, because the mean of its divisors is an integer number (4724200).

Almost surely, 2^64990935 is an apocalyptic number.

64990935 is a deficient number, since it is larger than the sum of its proper divisors (48389865).

64990935 is a wasteful number, since it uses less digits than its factorization.

64990935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9367 (or 9364 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 64990935 is about 8061.6955412618. The cubic root of 64990935 is about 402.0538837699.

The spelling of 64990935 in words is "sixty-four million, nine hundred ninety thousand, nine hundred thirty-five".