64933090 has 8 divisors (see below), whose sum is σ = 116879580. Its totient is φ = 25973232.

The previous prime is 64933087. The next prime is 64933091. The reversal of 64933090 is 9033946.

It can be written as a sum of positive squares in 2 ways, for example, as 64786401 + 146689 = 8049^2 + 383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×64933090³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64933091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3246645 + ... + 3246664.

Almost surely, 2^64933090 is an apocalyptic number.

64933090 is a deficient number, since it is larger than the sum of its proper divisors (51946490).

64933090 is a wasteful number, since it uses less digits than its factorization.

64933090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6493316.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 64933090 is about 8058.1070978239. The cubic root of 64933090 is about 401.9345660517.

The spelling of 64933090 in words is "sixty-four million, nine hundred thirty-three thousand, ninety".