87150690 has 96 divisors (see below), whose sum is σ = 252585216. Its totient is φ = 20666880.

The previous prime is 87150689. The next prime is 87150691. The reversal of 87150690 is 9605178.

It is an interprime number because it is at equal distance from previous prime (87150689) and next prime (87150691).

It is a super-2 number, since 2×87150690² = 15190485534952200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87150691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45594 + ... + 47466.

It is an arithmetic number, because the mean of its divisors is an integer number (2631096).

Almost surely, 2^87150690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87150690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126292608).

87150690 is an abundant number, since it is smaller than the sum of its proper divisors (165434526).

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

87150690 is a wasteful number, since it uses less digits than its factorization.

87150690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1944 (or 1941 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 87150690 is about 9335.4533901680. The cubic root of 87150690 is about 443.3604439423.

The spelling of 87150690 in words is "eighty-seven million, one hundred fifty thousand, six hundred ninety".