72413271 has 24 divisors (see below), whose sum is σ = 123969664. Its totient is φ = 41378040.

The previous prime is 72413233. The next prime is 72413287. The reversal of 72413271 is 17231427.

It is a happy number.

It is not a de Polignac number, because 72413271 - 2⁶ = 72413207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72413221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19585 + ... + 22986.

Almost surely, 2^72413271 is an apocalyptic number.

72413271 is a deficient number, since it is larger than the sum of its proper divisors (51556393).

72413271 is an equidigital number, since it uses as much as digits as its factorization.

72413271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42593 (or 42581 counting only the distinct ones).

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

The square root of 72413271 is about 8509.5987566982. The cubic root of 72413271 is about 416.8112079507.

Adding to 72413271 its reverse (17231427), we get a palindrome (89644698).

The spelling of 72413271 in words is "seventy-two million, four hundred thirteen thousand, two hundred seventy-one".