64790028 has 36 divisors (see below), whose sum is σ = 164040240. Its totient is φ = 21561696.

The previous prime is 64789999. The next prime is 64790029. The reversal of 64790028 is 82009746.

64790028 is a `hidden beast` number, since 647 + 9 + 0 + 0 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 64789974 and 64790001.

It is not an unprimeable number, because it can be changed into a prime (64790029) 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, 30918 + ... + 32946.

Almost surely, 2^64790028 is an apocalyptic number.

It is an amenable number.

64790028 is an abundant number, since it is smaller than the sum of its proper divisors (99250212).

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

64790028 is a wasteful number, since it uses less digits than its factorization.

64790028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926 (or 2921 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 64790028 is about 8049.2253043383. The cubic root of 64790028 is about 401.6391653337.

The spelling of 64790028 in words is "sixty-four million, seven hundred ninety thousand, twenty-eight".