72734735 has 4 divisors (see below), whose sum is σ = 87281688. Its totient is φ = 58187784.

The previous prime is 72734729. The next prime is 72734777. The reversal of 72734735 is 53743727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53743727 = 307 ⋅175061.

It is a cyclic number.

It is not a de Polignac number, because 72734735 - 2²² = 68540431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7273469 + ... + 7273478.

It is an arithmetic number, because the mean of its divisors is an integer number (21820422).

Almost surely, 2^72734735 is an apocalyptic number.

72734735 is a deficient number, since it is larger than the sum of its proper divisors (14546953).

72734735 is a wasteful number, since it uses less digits than its factorization.

72734735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14546952.

The product of its digits is 123480, while the sum is 38.

The square root of 72734735 is about 8528.4661575221. The cubic root of 72734735 is about 417.4270803839.

The spelling of 72734735 in words is "seventy-two million, seven hundred thirty-four thousand, seven hundred thirty-five".