87399342 has 12 divisors (see below), whose sum is σ = 189365280. Its totient is φ = 29133108.

The previous prime is 87399307. The next prime is 87399383. The reversal of 87399342 is 24399378.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2427742 + ... + 2427777.

It is an arithmetic number, because the mean of its divisors is an integer number (15780440).

Almost surely, 2^87399342 is an apocalyptic number.

87399342 is an abundant number, since it is smaller than the sum of its proper divisors (101965938).

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

87399342 is a wasteful number, since it uses less digits than its factorization.

87399342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855527 (or 4855524 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 87399342 is about 9348.7615222552. The cubic root of 87399342 is about 443.7816981390.

It can be divided in two parts, 8739 and 9342, that added together give a palindrome (18081).

The spelling of 87399342 in words is "eighty-seven million, three hundred ninety-nine thousand, three hundred forty-two".