72634735 has 4 divisors (see below), whose sum is σ = 87161688. Its totient is φ = 58107784.

The previous prime is 72634717. The next prime is 72634741. The reversal of 72634735 is 53743627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53743627 = 7 ⋅7677661.

It is a cyclic number.

It is not a de Polignac number, because 72634735 - 2⁷ = 72634607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72634694 and 72634703.

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, 7263469 + ... + 7263478.

It is an arithmetic number, because the mean of its divisors is an integer number (21790422).

Almost surely, 2^72634735 is an apocalyptic number.

72634735 is a deficient number, since it is larger than the sum of its proper divisors (14526953).

72634735 is a wasteful number, since it uses less digits than its factorization.

72634735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14526952.

The product of its digits is 105840, while the sum is 37.

The square root of 72634735 is about 8522.6014221011. The cubic root of 72634735 is about 417.2356915297.

The spelling of 72634735 in words is "seventy-two million, six hundred thirty-four thousand, seven hundred thirty-five".