72734854 has 4 divisors (see below), whose sum is σ = 109102284. Its totient is φ = 36367426.

The previous prime is 72734843. The next prime is 72734863. The reversal of 72734854 is 45843727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45843727 = 6361 ⋅7207.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18183712 + ... + 18183715.

It is an arithmetic number, because the mean of its divisors is an integer number (27275571).

Almost surely, 2^72734854 is an apocalyptic number.

72734854 is a deficient number, since it is larger than the sum of its proper divisors (36367430).

72734854 is a wasteful number, since it uses less digits than its factorization.

72734854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36367429.

The product of its digits is 188160, while the sum is 40.

The square root of 72734854 is about 8528.4731341548. The cubic root of 72734854 is about 417.4273080321.

The spelling of 72734854 in words is "seventy-two million, seven hundred thirty-four thousand, eight hundred fifty-four".