100556998 has 8 divisors (see below), whose sum is σ = 151409808. Its totient is φ = 50087064.

The previous prime is 100556993. The next prime is 100556999. The reversal of 100556998 is 899655001.

It is a happy number.

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

It is a super-2 number, since 2×100556998² = 20223419693544008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100556993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95061 + ... + 96112.

It is an arithmetic number, because the mean of its divisors is an integer number (18926226).

Almost surely, 2^100556998 is an apocalyptic number.

100556998 is a deficient number, since it is larger than the sum of its proper divisors (50852810).

100556998 is a wasteful number, since it uses less digits than its factorization.

100556998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191438.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 100556998 is about 10027.8112267832. The cubic root of 100556998 is about 465.0190734844.

The spelling of 100556998 in words is "one hundred million, five hundred fifty-six thousand, nine hundred ninety-eight".