72604071 has 18 divisors (see below), whose sum is σ = 107515200. Its totient is φ = 47212320.

The previous prime is 72604069. The next prime is 72604079. The reversal of 72604071 is 17040627.

It is not a de Polignac number, because 72604071 - 2¹ = 72604069 is a prime.

It is a super-2 number, since 2×72604071² = 10542702251546082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72604079) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 12730 + ... + 17528.

Almost surely, 2^72604071 is an apocalyptic number.

72604071 is a deficient number, since it is larger than the sum of its proper divisors (34911129).

72604071 is a wasteful number, since it uses less digits than its factorization.

72604071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4887 (or 4843 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 72604071 is about 8520.8022509621. The cubic root of 72604071 is about 417.1769688626.

Adding to 72604071 its reverse (17040627), we get a palindrome (89644698).

The spelling of 72604071 in words is "seventy-two million, six hundred four thousand, seventy-one".