100397770 has 32 divisors (see below), whose sum is σ = 197562240. Its totient is φ = 36431040.

The previous prime is 100397723. The next prime is 100397771. The reversal of 100397770 is 77793001.

It is not an unprimeable number, because it can be changed into a prime (100397771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89976 + ... + 91084.

It is an arithmetic number, because the mean of its divisors is an integer number (6173820).

Almost surely, 2^100397770 is an apocalyptic number.

100397770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100397770 is a deficient number, since it is larger than the sum of its proper divisors (97164470).

100397770 is a wasteful number, since it uses less digits than its factorization.

100397770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1950.

The product of its (nonzero) digits is 9261, while the sum is 34.

The square root of 100397770 is about 10019.8687616156. The cubic root of 100397770 is about 464.7734974268.

The spelling of 100397770 in words is "one hundred million, three hundred ninety-seven thousand, seven hundred seventy".