64015628 has 6 divisors (see below), whose sum is σ = 112027356. Its totient is φ = 32007812.

The previous prime is 64015621. The next prime is 64015631. The reversal of 64015628 is 82651046.

It is a junction number, because it is equal to n+sod(n) for n = 64015594 and 64015603.

It is not an unprimeable number, because it can be changed into a prime (64015621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8001950 + ... + 8001957.

It is an arithmetic number, because the mean of its divisors is an integer number (18671226).

Almost surely, 2^64015628 is an apocalyptic number.

It is an amenable number.

64015628 is a deficient number, since it is larger than the sum of its proper divisors (48011728).

64015628 is a wasteful number, since it uses less digits than its factorization.

64015628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16003911 (or 16003909 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 64015628 is about 8000.9766903797. The cubic root of 64015628 is about 400.0325556836.

The spelling of 64015628 in words is "sixty-four million, fifteen thousand, six hundred twenty-eight".