72487762 has 16 divisors (see below), whose sum is σ = 119099160. Its totient is φ = 32935168.

The previous prime is 72487757. The next prime is 72487763. The reversal of 72487762 is 26778427.

It can be written as a sum of positive squares in 4 ways, for example, as 72403081 + 84681 = 8509^2 + 291^2 .

It is not an unprimeable number, because it can be changed into a prime (72487763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35773 + ... + 37744.

Almost surely, 2^72487762 is an apocalyptic number.

72487762 is a deficient number, since it is larger than the sum of its proper divisors (46611398).

72487762 is a wasteful number, since it uses less digits than its factorization.

72487762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73565.

The product of its digits is 263424, while the sum is 43.

The square root of 72487762 is about 8513.9745125294. The cubic root of 72487762 is about 416.9540825133.

The spelling of 72487762 in words is "seventy-two million, four hundred eighty-seven thousand, seven hundred sixty-two".