72654237 has 6 divisors (see below), whose sum is σ = 104945022. Its totient is φ = 48436152.

The previous prime is 72654223. The next prime is 72654247. The reversal of 72654237 is 73245627.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 46090521 + 26563716 = 6789^2 + 5154^2 .

It is not a de Polignac number, because 72654237 - 2²² = 68459933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72654247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4036338 + ... + 4036355.

It is an arithmetic number, because the mean of its divisors is an integer number (17490837).

Almost surely, 2^72654237 is an apocalyptic number.

It is an amenable number.

72654237 is a deficient number, since it is larger than the sum of its proper divisors (32290785).

72654237 is a wasteful number, since it uses less digits than its factorization.

72654237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8072699 (or 8072696 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 72654237 is about 8523.7454795413. The cubic root of 72654237 is about 417.2730299662.

The spelling of 72654237 in words is "seventy-two million, six hundred fifty-four thousand, two hundred thirty-seven".