87972002 has 8 divisors (see below), whose sum is σ = 132965712. Its totient is φ = 43650100.

The previous prime is 87971999. The next prime is 87972037. The reversal of 87972002 is 20027978.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167624 + ... + 168147.

It is an arithmetic number, because the mean of its divisors is an integer number (16620714).

Almost surely, 2^87972002 is an apocalyptic number.

87972002 is a deficient number, since it is larger than the sum of its proper divisors (44993710).

87972002 is a wasteful number, since it uses less digits than its factorization.

87972002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335904.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 87972002 is about 9379.3391025168. The cubic root of 87972002 is about 444.7488411447.

The spelling of 87972002 in words is "eighty-seven million, nine hundred seventy-two thousand, two".