64994072 has 32 divisors (see below), whose sum is σ = 143171280. Its totient is φ = 27269760.

The previous prime is 64994071. The next prime is 64994081. The reversal of 64994072 is 27049946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64994071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27263 + ... + 29550.

Almost surely, 2^64994072 is an apocalyptic number.

It is an amenable number.

64994072 is an abundant number, since it is smaller than the sum of its proper divisors (78177208).

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

64994072 is a wasteful number, since it uses less digits than its factorization.

64994072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56843 (or 56839 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 64994072 is about 8061.8901009627. The cubic root of 64994072 is about 402.0603524810.

The spelling of 64994072 in words is "sixty-four million, nine hundred ninety-four thousand, seventy-two".