72899674 has 4 divisors (see below), whose sum is σ = 109349514. Its totient is φ = 36449836.

The previous prime is 72899669. The next prime is 72899677. The reversal of 72899674 is 47699827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47699827 = 7 ⋅6814261.

It can be written as a sum of positive squares in only one way, i.e., 61387225 + 11512449 = 7835^2 + 3393^2 .

It is not an unprimeable number, because it can be changed into a prime (72899677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18224917 + ... + 18224920.

Almost surely, 2^72899674 is an apocalyptic number.

72899674 is a deficient number, since it is larger than the sum of its proper divisors (36449840).

72899674 is a wasteful number, since it uses less digits than its factorization.

72899674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36449839.

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

The square root of 72899674 is about 8538.1305916459. The cubic root of 72899674 is about 417.7423723255.

The spelling of 72899674 in words is "seventy-two million, eight hundred ninety-nine thousand, six hundred seventy-four".