87401170 has 8 divisors (see below), whose sum is σ = 157322124. Its totient is φ = 34960464.

The previous prime is 87401123. The next prime is 87401177. The reversal of 87401170 is 7110478.

It can be written as a sum of positive squares in 2 ways, for example, as 78092569 + 9308601 = 8837^2 + 3051^2 .

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

It is not an unprimeable number, because it can be changed into a prime (87401177) 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, 4370049 + ... + 4370068.

Almost surely, 2^87401170 is an apocalyptic number.

87401170 is a deficient number, since it is larger than the sum of its proper divisors (69920954).

87401170 is a wasteful number, since it uses less digits than its factorization.

87401170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8740124.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 87401170 is about 9348.8592887047. The cubic root of 87401170 is about 443.7847920879.

It can be divided in two parts, 87401 and 170, that added together give a triangular number (87571 = T₄₁₈).

The spelling of 87401170 in words is "eighty-seven million, four hundred one thousand, one hundred seventy".