107921403 has 12 divisors (see below), whose sum is σ = 161660408. Its totient is φ = 71947440.

The previous prime is 107921399. The next prime is 107921413. The reversal of 107921403 is 304129701.

It is not a de Polignac number, because 107921403 - 2² = 107921399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107921413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221818 + ... + 222303.

Almost surely, 2^107921403 is an apocalyptic number.

107921403 is a deficient number, since it is larger than the sum of its proper divisors (53739005).

107921403 is an frugal number, since it uses more digits than its factorization.

107921403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444136 (or 444124 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 107921403 is about 10388.5226572405. The cubic root of 107921403 is about 476.1047644436.

The spelling of 107921403 in words is "one hundred seven million, nine hundred twenty-one thousand, four hundred three".