100397795 has 4 divisors (see below), whose sum is σ = 120477360. Its totient is φ = 80318232.

The previous prime is 100397777. The next prime is 100397827. The reversal of 100397795 is 597793001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 597793001 = 13 ⋅45984077.

It is a cyclic number.

It is not a de Polignac number, because 100397795 - 2²⁰ = 99349219 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10039775 + ... + 10039784.

It is an arithmetic number, because the mean of its divisors is an integer number (30119340).

Almost surely, 2^100397795 is an apocalyptic number.

100397795 is a deficient number, since it is larger than the sum of its proper divisors (20079565).

100397795 is an equidigital number, since it uses as much as digits as its factorization.

100397795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20079564.

The product of its (nonzero) digits is 59535, while the sum is 41.

The square root of 100397795 is about 10019.8700091368. The cubic root of 100397795 is about 464.7735360045.

The spelling of 100397795 in words is "one hundred million, three hundred ninety-seven thousand, seven hundred ninety-five".