73507028 has 12 divisors (see below), whose sum is σ = 147014112. Its totient is φ = 31503000.

The previous prime is 73507019. The next prime is 73507033. The reversal of 73507028 is 82070537.

73507028 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 73506985 and 73507003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1312598 + ... + 1312653.

It is an arithmetic number, because the mean of its divisors is an integer number (12251176).

Almost surely, 2^73507028 is an apocalyptic number.

It is an amenable number.

73507028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

73507028 is a wasteful number, since it uses less digits than its factorization.

73507028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2625262 (or 2625260 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 73507028 is about 8573.6239712271. The cubic root of 73507028 is about 418.8992871446.

The spelling of 73507028 in words is "seventy-three million, five hundred seven thousand, twenty-eight".