108927431 has 2 divisors, whose sum is σ = 108927432. Its totient is φ = 108927430.

The previous prime is 108927373. The next prime is 108927433. The reversal of 108927431 is 134729801.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108927431 is a prime.

It is a super-2 number, since 2×108927431² = 23730370448519522, which contains 22 as substring.

Together with 108927433, it forms a pair of twin primes.

It is a Chen prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 108927391 and 108927400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108927433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54463715 + 54463716.

It is an arithmetic number, because the mean of its divisors is an integer number (54463716).

Almost surely, 2^108927431 is an apocalyptic number.

108927431 is a deficient number, since it is larger than the sum of its proper divisors (1).

108927431 is an equidigital number, since it uses as much as digits as its factorization.

108927431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 108927431 is about 10436.8305054744. The cubic root of 108927431 is about 477.5795848818.

The spelling of 108927431 in words is "one hundred eight million, nine hundred twenty-seven thousand, four hundred thirty-one".