107997998 has 4 divisors (see below), whose sum is σ = 161997000. Its totient is φ = 53998998.

The previous prime is 107997997. The next prime is 107998013. The reversal of 107997998 is 899799701.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107997997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26999498 + ... + 26999501.

It is an arithmetic number, because the mean of its divisors is an integer number (40499250).

Almost surely, 2^107997998 is an apocalyptic number.

107997998 is a deficient number, since it is larger than the sum of its proper divisors (53999002).

107997998 is an equidigital number, since it uses as much as digits as its factorization.

107997998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53999001.

The product of its (nonzero) digits is 2571912, while the sum is 59.

The square root of 107997998 is about 10392.2085236970. The cubic root of 107997998 is about 476.2173730011.

The spelling of 107997998 in words is "one hundred seven million, nine hundred ninety-seven thousand, nine hundred ninety-eight".