107918391 has 16 divisors (see below), whose sum is σ = 164672000. Its totient is φ = 61583328.

The previous prime is 107918389. The next prime is 107918401. The reversal of 107918391 is 193819701.

It is not a de Polignac number, because 107918391 - 2¹ = 107918389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107918351) 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, 14310 + ... + 20508.

It is an arithmetic number, because the mean of its divisors is an integer number (10292000).

Almost surely, 2^107918391 is an apocalyptic number.

107918391 is a deficient number, since it is larger than the sum of its proper divisors (56753609).

107918391 is an equidigital number, since it uses as much as digits as its factorization.

107918391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7038.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 107918391 is about 10388.3776885518. The cubic root of 107918391 is about 476.1003351680.

The spelling of 107918391 in words is "one hundred seven million, nine hundred eighteen thousand, three hundred ninety-one".