72683901 has 6 divisors (see below), whose sum is σ = 104987870. Its totient is φ = 48455928.

The previous prime is 72683881. The next prime is 72683927. The reversal of 72683901 is 10938627.

72683901 is a `hidden beast` number, since 7 + 268 + 390 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56475225 + 16208676 = 7515^2 + 4026^2 .

It is not a de Polignac number, because 72683901 - 2⁵ = 72683869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72683981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4037986 + ... + 4038003.

Almost surely, 2^72683901 is an apocalyptic number.

It is an amenable number.

72683901 is a deficient number, since it is larger than the sum of its proper divisors (32303969).

72683901 is a wasteful number, since it uses less digits than its factorization.

72683901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8075995 (or 8075992 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 72683901 is about 8525.4853820765. The cubic root of 72683901 is about 417.3298117106.

The spelling of 72683901 in words is "seventy-two million, six hundred eighty-three thousand, nine hundred one".