64920088 has 8 divisors (see below), whose sum is σ = 121725180. Its totient is φ = 32460040.

The previous prime is 64920083. The next prime is 64920103. The reversal of 64920088 is 88002946.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64920083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4057498 + ... + 4057513.

Almost surely, 2^64920088 is an apocalyptic number.

It is an amenable number.

64920088 is a deficient number, since it is larger than the sum of its proper divisors (56805092).

64920088 is a wasteful number, since it uses less digits than its factorization.

64920088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8115017 (or 8115013 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 64920088 is about 8057.3002922815. The cubic root of 64920088 is about 401.9077368851.

The spelling of 64920088 in words is "sixty-four million, nine hundred twenty thousand, eighty-eight".