73512789 has 32 divisors (see below), whose sum is σ = 115200000. Its totient is φ = 41679792.

The previous prime is 73512773. The next prime is 73512793. The reversal of 73512789 is 98721537.

It is not a de Polignac number, because 73512789 - 2⁴ = 73512773 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73512789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73512389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204592 + ... + 204950.

It is an arithmetic number, because the mean of its divisors is an integer number (3600000).

Almost surely, 2^73512789 is an apocalyptic number.

It is an amenable number.

73512789 is a deficient number, since it is larger than the sum of its proper divisors (41687211).

73512789 is a wasteful number, since it uses less digits than its factorization.

73512789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 568 counting only the distinct ones).

The product of its digits is 105840, while the sum is 42.

The square root of 73512789 is about 8573.9599369253. The cubic root of 73512789 is about 418.9102303873.

The spelling of 73512789 in words is "seventy-three million, five hundred twelve thousand, seven hundred eighty-nine".