73921712 has 20 divisors (see below), whose sum is σ = 151648776. Its totient is φ = 34786560.

The previous prime is 73921711. The next prime is 73921753. The reversal of 73921712 is 21712937.

It is not an unprimeable number, because it can be changed into a prime (73921711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135614 + ... + 136157.

Almost surely, 2^73921712 is an apocalyptic number.

It is an amenable number.

73921712 is an abundant number, since it is smaller than the sum of its proper divisors (77727064).

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

73921712 is a wasteful number, since it uses less digits than its factorization.

73921712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271796 (or 271790 counting only the distinct ones).

The product of its digits is 5292, while the sum is 32.

The square root of 73921712 is about 8597.7736653159. The cubic root of 73921712 is about 419.6855393715.

The spelling of 73921712 in words is "seventy-three million, nine hundred twenty-one thousand, seven hundred twelve".