100897020 has 72 divisors (see below), whose sum is σ = 349780704. Its totient is φ = 23061888.

The previous prime is 100897009. The next prime is 100897037. The reversal of 100897020 is 20798001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38779 + ... + 41298.

Almost surely, 2^100897020 is an apocalyptic number.

100897020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100897020 is an abundant number, since it is smaller than the sum of its proper divisors (248883684).

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

100897020 is a wasteful number, since it uses less digits than its factorization.

100897020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80099 (or 80094 counting only the distinct ones).

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

The square root of 100897020 is about 10044.7508679907. The cubic root of 100897020 is about 465.5426201121.

The spelling of 100897020 in words is "one hundred million, eight hundred ninety-seven thousand, twenty".