100887290 has 32 divisors (see below), whose sum is σ = 210950784. Its totient is φ = 34021440.

The previous prime is 100887287. The next prime is 100887313. The reversal of 100887290 is 92788001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 100887290.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7544 + ... + 16083.

It is an arithmetic number, because the mean of its divisors is an integer number (6592212).

Almost surely, 2^100887290 is an apocalyptic number.

100887290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100887290 is an abundant number, since it is smaller than the sum of its proper divisors (110063494).

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

100887290 is a wasteful number, since it uses less digits than its factorization.

100887290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23702.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 100887290 is about 10044.2665237438. The cubic root of 100887290 is about 465.5276547698.

The spelling of 100887290 in words is "one hundred million, eight hundred eighty-seven thousand, two hundred ninety".