117976919 has 2 divisors, whose sum is σ = 117976920. Its totient is φ = 117976918.

The previous prime is 117976829. The next prime is 117976927. The reversal of 117976919 is 919679711.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117976919 is a prime.

It is a super-2 number, since 2×117976919² = 27837106833465122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117976949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58988459 + 58988460.

It is an arithmetic number, because the mean of its divisors is an integer number (58988460).

Almost surely, 2^117976919 is an apocalyptic number.

117976919 is a deficient number, since it is larger than the sum of its proper divisors (1).

117976919 is an equidigital number, since it uses as much as digits as its factorization.

117976919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214326, while the sum is 50.

The square root of 117976919 is about 10861.7180501061. The cubic root of 117976919 is about 490.4548310497.

The spelling of 117976919 in words is "one hundred seventeen million, nine hundred seventy-six thousand, nine hundred nineteen".