64662394 has 8 divisors (see below), whose sum is σ = 97028820. Its totient is φ = 32319456.

The previous prime is 64662391. The next prime is 64662419. The reversal of 64662394 is 49326646.

It can be written as a sum of positive squares in 2 ways, for example, as 43731769 + 20930625 = 6613^2 + 4575^2 .

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

It is a super-2 number, since 2×64662394² = 8362450395622472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64662391) 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 in 3 ways as a sum of consecutive naturals, for example, 5152 + ... + 12484.

Almost surely, 2^64662394 is an apocalyptic number.

64662394 is a deficient number, since it is larger than the sum of its proper divisors (32366426).

64662394 is a wasteful number, since it uses less digits than its factorization.

64662394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11744.

The product of its digits is 186624, while the sum is 40.

The square root of 64662394 is about 8041.2930552244. The cubic root of 64662394 is about 401.3752537738.

It can be divided in two parts, 64662 and 394, that added together give a palindrome (65056).

The spelling of 64662394 in words is "sixty-four million, six hundred sixty-two thousand, three hundred ninety-four".