73988971 has 24 divisors (see below), whose sum is σ = 90295296. Its totient is φ = 60374160.

The previous prime is 73988933. The next prime is 73988977. The reversal of 73988971 is 17988937.

It is not a de Polignac number, because 73988971 - 2⁷ = 73988843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73988977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101410 + ... + 102136.

It is an arithmetic number, because the mean of its divisors is an integer number (3762304).

Almost surely, 2^73988971 is an apocalyptic number.

73988971 is a deficient number, since it is larger than the sum of its proper divisors (16306325).

73988971 is a wasteful number, since it uses less digits than its factorization.

73988971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839 (or 832 counting only the distinct ones).

The product of its digits is 762048, while the sum is 52.

The square root of 73988971 is about 8601.6841955515. The cubic root of 73988971 is about 419.8127869334.

The spelling of 73988971 in words is "seventy-three million, nine hundred eighty-eight thousand, nine hundred seventy-one".