117849497 has 2 divisors, whose sum is σ = 117849498. Its totient is φ = 117849496.

The previous prime is 117849451. The next prime is 117849517. The reversal of 117849497 is 794948711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115691536 + 2157961 = 10756^2 + 1469^2 .

It is a cyclic number.

It is not a de Polignac number, because 117849497 - 2²² = 113655193 is a prime.

It is not a weakly prime, because it can be changed into another prime (117849097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58924748 + 58924749.

It is an arithmetic number, because the mean of its divisors is an integer number (58924749).

Almost surely, 2^117849497 is an apocalyptic number.

It is an amenable number.

117849497 is a deficient number, since it is larger than the sum of its proper divisors (1).

117849497 is an equidigital number, since it uses as much as digits as its factorization.

117849497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 50.

The square root of 117849497 is about 10855.8508187981. The cubic root of 117849497 is about 490.2781941029.

The spelling of 117849497 in words is "one hundred seventeen million, eight hundred forty-nine thousand, four hundred ninety-seven".