72468987 has 4 divisors (see below), whose sum is σ = 96625320. Its totient is φ = 48312656.

The previous prime is 72468973. The next prime is 72468989. The reversal of 72468987 is 78986427.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72468987 - 2⁷ = 72468859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72468989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12078162 + ... + 12078167.

It is an arithmetic number, because the mean of its divisors is an integer number (24156330).

Almost surely, 2^72468987 is an apocalyptic number.

72468987 is a deficient number, since it is larger than the sum of its proper divisors (24156333).

72468987 is a wasteful number, since it uses less digits than its factorization.

72468987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24156332.

The product of its digits is 1354752, while the sum is 51.

The square root of 72468987 is about 8512.8718420989. The cubic root of 72468987 is about 416.9180810852.

The spelling of 72468987 in words is "seventy-two million, four hundred sixty-eight thousand, nine hundred eighty-seven".