117532977 has 4 divisors (see below), whose sum is σ = 156710640. Its totient is φ = 78355316.

The previous prime is 117532939. The next prime is 117532981. The reversal of 117532977 is 779235711.

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: 779235711 = 3 ⋅259745237.

It is a cyclic number.

It is not a de Polignac number, because 117532977 - 2¹¹ = 117530929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117532907) 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, 19588827 + ... + 19588832.

It is an arithmetic number, because the mean of its divisors is an integer number (39177660).

Almost surely, 2^117532977 is an apocalyptic number.

It is an amenable number.

117532977 is a deficient number, since it is larger than the sum of its proper divisors (39177663).

117532977 is an equidigital number, since it uses as much as digits as its factorization.

117532977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39177662.

The product of its digits is 92610, while the sum is 42.

The square root of 117532977 is about 10841.2627032094. The cubic root of 117532977 is about 489.8388710805.

The spelling of 117532977 in words is "one hundred seventeen million, five hundred thirty-two thousand, nine hundred seventy-seven".