87986402 has 8 divisors (see below), whose sum is σ = 150833856. Its totient is φ = 37708452.

The previous prime is 87986317. The next prime is 87986417. The reversal of 87986402 is 20468978.

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, 3142358 + ... + 3142385.

It is an arithmetic number, because the mean of its divisors is an integer number (18854232).

Almost surely, 2^87986402 is an apocalyptic number.

87986402 is a deficient number, since it is larger than the sum of its proper divisors (62847454).

87986402 is a wasteful number, since it uses less digits than its factorization.

87986402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6284752.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 87986402 is about 9380.1067158109. The cubic root of 87986402 is about 444.7731065691.

It can be divided in two parts, 87986 and 402, that added together give a palindrome (88388).

The spelling of 87986402 in words is "eighty-seven million, nine hundred eighty-six thousand, four hundred two".