72689974 has 16 divisors (see below), whose sum is σ = 125595648. Its totient is φ = 30906792.

The previous prime is 72689927. The next prime is 72689993. The reversal of 72689974 is 47998627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18664 + ... + 22219.

It is an arithmetic number, because the mean of its divisors is an integer number (7849728).

Almost surely, 2^72689974 is an apocalyptic number.

72689974 is a deficient number, since it is larger than the sum of its proper divisors (52905674).

72689974 is a wasteful number, since it uses less digits than its factorization.

72689974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41019.

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

The square root of 72689974 is about 8525.8415420415. The cubic root of 72689974 is about 417.3414345199.

The spelling of 72689974 in words is "seventy-two million, six hundred eighty-nine thousand, nine hundred seventy-four".