64984700 has 36 divisors (see below), whose sum is σ = 153839112. Its totient is φ = 23630400.

The previous prime is 64984681. The next prime is 64984709. The reversal of 64984700 is 748946.

It is a happy number.

It is a super-2 number, since 2×64984700² = 8446022468180000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64984709) 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, 28439 + ... + 30638.

Almost surely, 2^64984700 is an apocalyptic number.

It is an amenable number.

64984700 is an abundant number, since it is smaller than the sum of its proper divisors (88854412).

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

64984700 is a wasteful number, since it uses less digits than its factorization.

64984700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59102 (or 59095 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 64984700 is about 8061.3088267353. The cubic root of 64984700 is about 402.0410261505.

The spelling of 64984700 in words is "sixty-four million, nine hundred eighty-four thousand, seven hundred".