72487966 has 16 divisors (see below), whose sum is σ = 115773840. Its totient is φ = 33920640.

The previous prime is 72487901. The next prime is 72487979. The reversal of 72487966 is 66978427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 12043.

It is an arithmetic number, because the mean of its divisors is an integer number (7235865).

Almost surely, 2^72487966 is an apocalyptic number.

72487966 is a deficient number, since it is larger than the sum of its proper divisors (43285874).

72487966 is a wasteful number, since it uses less digits than its factorization.

72487966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11979.

The product of its digits is 1016064, while the sum is 49.

The square root of 72487966 is about 8513.9864928246. The cubic root of 72487966 is about 416.9544736531.

The spelling of 72487966 in words is "seventy-two million, four hundred eighty-seven thousand, nine hundred sixty-six".