64861676 has 12 divisors (see below), whose sum is σ = 123826920. Its totient is φ = 29482560.

The previous prime is 64861651. The next prime is 64861697. The reversal of 64861676 is 67616846.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1474129 = 64861676 / (6 + 4 + 8 + 6 + 1 + 6 + 7 + 6).

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, 737021 + ... + 737108.

It is an arithmetic number, because the mean of its divisors is an integer number (10318910).

Almost surely, 2^64861676 is an apocalyptic number.

It is an amenable number.

64861676 is a deficient number, since it is larger than the sum of its proper divisors (58965244).

64861676 is a wasteful number, since it uses less digits than its factorization.

64861676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474144 (or 1474142 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 64861676 is about 8053.6746892335. The cubic root of 64861676 is about 401.7871615752.

The spelling of 64861676 in words is "sixty-four million, eight hundred sixty-one thousand, six hundred seventy-six".