72710973 has 8 divisors (see below), whose sum is σ = 107720000. Its totient is φ = 48473964.

The previous prime is 72710959. The next prime is 72710977. The reversal of 72710973 is 37901727.

It is not a de Polignac number, because 72710973 - 2¹² = 72706877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72710977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1346473 + ... + 1346526.

It is an arithmetic number, because the mean of its divisors is an integer number (13465000).

Almost surely, 2^72710973 is an apocalyptic number.

It is an amenable number.

72710973 is a deficient number, since it is larger than the sum of its proper divisors (35009027).

72710973 is a wasteful number, since it uses less digits than its factorization.

72710973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2693008 (or 2693002 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 72710973 is about 8527.0729444517. The cubic root of 72710973 is about 417.3816184615.

The spelling of 72710973 in words is "seventy-two million, seven hundred ten thousand, nine hundred seventy-three".