109907990 has 16 divisors (see below), whose sum is σ = 198153648. Its totient is φ = 43892256.

The previous prime is 109907977. The next prime is 109908011. The reversal of 109907990 is 99709901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2117 + ... + 14976.

It is an arithmetic number, because the mean of its divisors is an integer number (12384603).

Almost surely, 2^109907990 is an apocalyptic number.

109907990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109907990 is a deficient number, since it is larger than the sum of its proper divisors (88245658).

109907990 is a wasteful number, since it uses less digits than its factorization.

109907990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17743.

The product of its (nonzero) digits is 45927, while the sum is 44.

The square root of 109907990 is about 10483.7011594188. The cubic root of 109907990 is about 479.0083549434.

The spelling of 109907990 in words is "one hundred nine million, nine hundred seven thousand, nine hundred ninety".