72872734 has 12 divisors (see below), whose sum is σ = 120150072. Its totient is φ = 33123860.

The previous prime is 72872731. The next prime is 72872741. The reversal of 72872734 is 43727827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72872731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150322 + ... + 150805.

It is an arithmetic number, because the mean of its divisors is an integer number (10012506).

Almost surely, 2^72872734 is an apocalyptic number.

72872734 is a deficient number, since it is larger than the sum of its proper divisors (47277338).

72872734 is a wasteful number, since it uses less digits than its factorization.

72872734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301151 (or 301140 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The square root of 72872734 is about 8536.5528171505. The cubic root of 72872734 is about 417.6909072298.

The spelling of 72872734 in words is "seventy-two million, eight hundred seventy-two thousand, seven hundred thirty-four".