100290087 has 12 divisors (see below), whose sum is σ = 144997320. Its totient is φ = 66798288.

The previous prime is 100290079. The next prime is 100290107. The reversal of 100290087 is 780092001.

It is not a de Polignac number, because 100290087 - 2³ = 100290079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100290087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100290007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6528 + ... + 15594.

It is an arithmetic number, because the mean of its divisors is an integer number (12083110).

Almost surely, 2^100290087 is an apocalyptic number.

100290087 is a deficient number, since it is larger than the sum of its proper divisors (44707233).

100290087 is a wasteful number, since it uses less digits than its factorization.

100290087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10302 (or 10299 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 100290087 is about 10014.4938464208. The cubic root of 100290087 is about 464.6072715950.

The spelling of 100290087 in words is "one hundred million, two hundred ninety thousand, eighty-seven".