87690154 has 8 divisors (see below), whose sum is σ = 131867748. Its totient is φ = 43734240.

The previous prime is 87690151. The next prime is 87690157. The reversal of 87690154 is 45109678.

It is an interprime number because it is at equal distance from previous prime (87690151) and next prime (87690157).

It can be written as a sum of positive squares in 2 ways, for example, as 86992929 + 697225 = 9327^2 + 835^2 .

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 (87690151) 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, 54427 + ... + 56014.

Almost surely, 2^87690154 is an apocalyptic number.

87690154 is a deficient number, since it is larger than the sum of its proper divisors (44177594).

87690154 is a wasteful number, since it uses less digits than its factorization.

87690154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110840.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 87690154 is about 9364.3021096075. The cubic root of 87690154 is about 444.2733653266.

The spelling of 87690154 in words is "eighty-seven million, six hundred ninety thousand, one hundred fifty-four".