117672497 has 4 divisors (see below), whose sum is σ = 121468416. Its totient is φ = 113876580.

The previous prime is 117672493. The next prime is 117672509. The reversal of 117672497 is 794276711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 794276711 = 131 ⋅6063181.

It is a cyclic number.

It is not a de Polignac number, because 117672497 - 2² = 117672493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117672493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897913 + ... + 1897974.

It is an arithmetic number, because the mean of its divisors is an integer number (30367104).

Almost surely, 2^117672497 is an apocalyptic number.

It is an amenable number.

117672497 is a deficient number, since it is larger than the sum of its proper divisors (3795919).

117672497 is an equidigital number, since it uses as much as digits as its factorization.

117672497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3795918.

The product of its digits is 148176, while the sum is 44.

The square root of 117672497 is about 10847.6954695456. The cubic root of 117672497 is about 490.0326189586.

The spelling of 117672497 in words is "one hundred seventeen million, six hundred seventy-two thousand, four hundred ninety-seven".