100291998 has 8 divisors (see below), whose sum is σ = 200584008. Its totient is φ = 33430664.

The previous prime is 100291987. The next prime is 100292009. The reversal of 100291998 is 899192001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100291987) and next prime (100292009).

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

100291998 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8357661 + ... + 8357672.

It is an arithmetic number, because the mean of its divisors is an integer number (25073001).

Almost surely, 2^100291998 is an apocalyptic number.

100291998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

100291998 is a wasteful number, since it uses less digits than its factorization.

100291998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16715338.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 100291998 is about 10014.5892576780. The cubic root of 100291998 is about 464.6102225642.

The spelling of 100291998 in words is "one hundred million, two hundred ninety-one thousand, nine hundred ninety-eight".