64463506 has 8 divisors (see below), whose sum is σ = 96908220. Its totient is φ = 32160768.

The previous prime is 64463489. The next prime is 64463513. The reversal of 64463506 is 60536446.

It can be written as a sum of positive squares in 2 ways, for example, as 61074225 + 3389281 = 7815^2 + 1841^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34351 + ... + 36178.

Almost surely, 2^64463506 is an apocalyptic number.

64463506 is a deficient number, since it is larger than the sum of its proper divisors (32444714).

64463506 is a wasteful number, since it uses less digits than its factorization.

64463506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70988.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 64463506 is about 8028.9168634381. The cubic root of 64463506 is about 400.9633156948.

The spelling of 64463506 in words is "sixty-four million, four hundred sixty-three thousand, five hundred six".