87109422 has 16 divisors (see below), whose sum is σ = 177506640. Its totient is φ = 28488512.

The previous prime is 87109397. The next prime is 87109481. The reversal of 87109422 is 22490178.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136647 + ... + 137282.

It is an arithmetic number, because the mean of its divisors is an integer number (11094165).

Almost surely, 2^87109422 is an apocalyptic number.

87109422 is an abundant number, since it is smaller than the sum of its proper divisors (90397218).

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

87109422 is a wasteful number, since it uses less digits than its factorization.

87109422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273987.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 87109422 is about 9333.2428447994. The cubic root of 87109422 is about 443.2904521938.

The spelling of 87109422 in words is "eighty-seven million, one hundred nine thousand, four hundred twenty-two".