72749698 has 32 divisors (see below), whose sum is σ = 134241408. Its totient is φ = 28857600.

The previous prime is 72749693. The next prime is 72749711. The reversal of 72749698 is 89694727.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (72749693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12013 + ... + 17023.

It is an arithmetic number, because the mean of its divisors is an integer number (4195044).

Almost surely, 2^72749698 is an apocalyptic number.

72749698 is a deficient number, since it is larger than the sum of its proper divisors (61491710).

72749698 is a wasteful number, since it uses less digits than its factorization.

72749698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5098.

The product of its digits is 1524096, while the sum is 52.

The square root of 72749698 is about 8529.3433510441. The cubic root of 72749698 is about 417.4557028073.

The spelling of 72749698 in words is "seventy-two million, seven hundred forty-nine thousand, six hundred ninety-eight".