64576746 has 24 divisors (see below), whose sum is σ = 150679620. Its totient is φ = 19869696.

The previous prime is 64576717. The next prime is 64576753. The reversal of 64576746 is 64767546.

It is a happy number.

64576746 is a `hidden beast` number, since 6 + 4 + 576 + 74 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 55666521 + 8910225 = 7461^2 + 2985^2 .

It is a super-2 number, since 2×64576746² = 8340312247897032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137751 + ... + 138218.

Almost surely, 2^64576746 is an apocalyptic number.

64576746 is an abundant number, since it is smaller than the sum of its proper divisors (86102874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64576746 is a wasteful number, since it uses less digits than its factorization.

64576746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275990 (or 275987 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 64576746 is about 8035.9657789217. The cubic root of 64576746 is about 401.1979627978.

It can be divided in two parts, 6457 and 6746, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 64576746 in words is "sixty-four million, five hundred seventy-six thousand, seven hundred forty-six".