64628070 has 32 divisors (see below), whose sum is σ = 167039712. Its totient is φ = 15908352.

The previous prime is 64628059. The next prime is 64628077. The reversal of 64628070 is 7082646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64628077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82467 + ... + 83246.

It is an arithmetic number, because the mean of its divisors is an integer number (5219991).

Almost surely, 2^64628070 is an apocalyptic number.

64628070 is an abundant number, since it is smaller than the sum of its proper divisors (102411642).

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

64628070 is a wasteful number, since it uses less digits than its factorization.

64628070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165736.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 64628070 is about 8039.1585380561. The cubic root of 64628070 is about 401.3042220569.

The spelling of 64628070 in words is "sixty-four million, six hundred twenty-eight thousand, seventy".