87195930 has 32 divisors (see below), whose sum is σ = 214377408. Its totient is φ = 22684800.

The previous prime is 87195929. The next prime is 87195931. The reversal of 87195930 is 3959178.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87195929) and next prime (87195931).

It is not an unprimeable number, because it can be changed into a prime (87195931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34216 + ... + 36675.

It is an arithmetic number, because the mean of its divisors is an integer number (6699294).

Almost surely, 2^87195930 is an apocalyptic number.

87195930 is an abundant number, since it is smaller than the sum of its proper divisors (127181478).

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

87195930 is a wasteful number, since it uses less digits than its factorization.

87195930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70942.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 87195930 is about 9337.8760968434. The cubic root of 87195930 is about 443.4371469374.

The spelling of 87195930 in words is "eighty-seven million, one hundred ninety-five thousand, nine hundred thirty".