72424671 has 24 divisors (see below), whose sum is σ = 107046912. Its totient is φ = 43520400.

The previous prime is 72424669. The next prime is 72424679. The reversal of 72424671 is 17642427.

It is not a de Polignac number, because 72424671 - 2¹ = 72424669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72424679) 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, 45316 + ... + 46886.

It is an arithmetic number, because the mean of its divisors is an integer number (4460288).

Almost surely, 2^72424671 is an apocalyptic number.

72424671 is a deficient number, since it is larger than the sum of its proper divisors (34622241).

72424671 is a wasteful number, since it uses less digits than its factorization.

72424671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723 (or 1712 counting only the distinct ones).

The product of its digits is 18816, while the sum is 33.

The square root of 72424671 is about 8510.2685621548. The cubic root of 72424671 is about 416.8330796251.

The spelling of 72424671 in words is "seventy-two million, four hundred twenty-four thousand, six hundred seventy-one".