87636274 has 8 divisors (see below), whose sum is σ = 143404848. Its totient is φ = 39834660.

The previous prime is 87636259. The next prime is 87636277. The reversal of 87636274 is 47263678.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 87636274.

It is not an unprimeable number, because it can be changed into a prime (87636277) by changing a digit.

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, 1991712 + ... + 1991755.

It is an arithmetic number, because the mean of its divisors is an integer number (17925606).

Almost surely, 2^87636274 is an apocalyptic number.

87636274 is a deficient number, since it is larger than the sum of its proper divisors (55768574).

87636274 is a wasteful number, since it uses less digits than its factorization.

87636274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3983480.

The product of its digits is 338688, while the sum is 43.

The square root of 87636274 is about 9361.4247847216. The cubic root of 87636274 is about 444.1823541462.

The spelling of 87636274 in words is "eighty-seven million, six hundred thirty-six thousand, two hundred seventy-four".