72916673 has 4 divisors (see below), whose sum is σ = 72941568. Its totient is φ = 72891780.

The previous prime is 72916667. The next prime is 72916729. The reversal of 72916673 is 37661927.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72916673 - 2¹⁰ = 72915649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72916673.

It is not an unprimeable number, because it can be changed into a prime (72916633) 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, 7361 + ... + 14142.

It is an arithmetic number, because the mean of its divisors is an integer number (18235392).

Almost surely, 2^72916673 is an apocalyptic number.

It is an amenable number.

72916673 is a deficient number, since it is larger than the sum of its proper divisors (24895).

72916673 is a wasteful number, since it uses less digits than its factorization.

72916673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24894.

The product of its digits is 95256, while the sum is 41.

The square root of 72916673 is about 8539.1260091417. The cubic root of 72916673 is about 417.7748400093.

The spelling of 72916673 in words is "seventy-two million, nine hundred sixteen thousand, six hundred seventy-three".