72673492 has 6 divisors (see below), whose sum is σ = 127178618. Its totient is φ = 36336744.

The previous prime is 72673481. The next prime is 72673529. The reversal of 72673492 is 29437627.

It can be written as a sum of positive squares in only one way, i.e., 65351056 + 7322436 = 8084^2 + 2706^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9084183 + ... + 9084190.

Almost surely, 2^72673492 is an apocalyptic number.

It is an amenable number.

72673492 is a deficient number, since it is larger than the sum of its proper divisors (54505126).

72673492 is a wasteful number, since it uses less digits than its factorization.

72673492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18168377 (or 18168375 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 72673492 is about 8524.8748964428. The cubic root of 72673492 is about 417.3098889431.

The spelling of 72673492 in words is "seventy-two million, six hundred seventy-three thousand, four hundred ninety-two".