87394242 has 32 divisors (see below), whose sum is σ = 188818560. Its totient is φ = 26807040.

The previous prime is 87394231. The next prime is 87394249. The reversal of 87394242 is 24249378.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 87394242.

It is not an unprimeable number, because it can be changed into a prime (87394249) 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 15 ways as a sum of consecutive naturals, for example, 26442 + ... + 29562.

It is an arithmetic number, because the mean of its divisors is an integer number (5900580).

Almost surely, 2^87394242 is an apocalyptic number.

87394242 is an abundant number, since it is smaller than the sum of its proper divisors (101424318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87394242 is a wasteful number, since it uses less digits than its factorization.

87394242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3498.

The product of its digits is 96768, while the sum is 39.

The square root of 87394242 is about 9348.4887548737. The cubic root of 87394242 is about 443.7730659967.

The spelling of 87394242 in words is "eighty-seven million, three hundred ninety-four thousand, two hundred forty-two".