108491377 has 2 divisors, whose sum is σ = 108491378. Its totient is φ = 108491376.

The previous prime is 108491353. The next prime is 108491381. The reversal of 108491377 is 773194801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67223601 + 41267776 = 8199^2 + 6424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-108491377 is a prime.

It is a super-2 number, since 2×108491377² = 23540757766712258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (108491077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54245688 + 54245689.

It is an arithmetic number, because the mean of its divisors is an integer number (54245689).

Almost surely, 2^108491377 is an apocalyptic number.

It is an amenable number.

108491377 is a deficient number, since it is larger than the sum of its proper divisors (1).

108491377 is an equidigital number, since it uses as much as digits as its factorization.

108491377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 108491377 is about 10415.9194025300. The cubic root of 108491377 is about 476.9414566871.

The spelling of 108491377 in words is "one hundred eight million, four hundred ninety-one thousand, three hundred seventy-seven".