64496637 has 12 divisors (see below), whose sum is σ = 93231424. Its totient is φ = 42965640.

The previous prime is 64496633. The next prime is 64496639. The reversal of 64496637 is 73669446.

64496637 is a `hidden beast` number, since 6 + 4 + 4 + 9 + 6 + 637 = 666.

It is not a de Polignac number, because 64496637 - 2² = 64496633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64496592 and 64496601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64496633) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22698 + ... + 25380.

Almost surely, 2^64496637 is an apocalyptic number.

It is an amenable number.

64496637 is a deficient number, since it is larger than the sum of its proper divisors (28734787).

64496637 is a wasteful number, since it uses less digits than its factorization.

64496637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5360 (or 5357 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The square root of 64496637 is about 8030.9798281405. The cubic root of 64496637 is about 401.0319955897.

The spelling of 64496637 in words is "sixty-four million, four hundred ninety-six thousand, six hundred thirty-seven".