117377477 has 4 divisors (see below), whose sum is σ = 134145696. Its totient is φ = 100609260.

The previous prime is 117377467. The next prime is 117377479. The reversal of 117377477 is 774773711.

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: 774773711 = 839 ⋅923449.

It is a cyclic number.

It is not a de Polignac number, because 117377477 - 2¹⁰ = 117376453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117377479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8384099 + ... + 8384112.

It is an arithmetic number, because the mean of its divisors is an integer number (33536424).

Almost surely, 2^117377477 is an apocalyptic number.

It is an amenable number.

117377477 is a deficient number, since it is larger than the sum of its proper divisors (16768219).

117377477 is an equidigital number, since it uses as much as digits as its factorization.

117377477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16768218.

The product of its digits is 201684, while the sum is 44.

The square root of 117377477 is about 10834.0886557200. The cubic root of 117377477 is about 489.6227514209.

The spelling of 117377477 in words is "one hundred seventeen million, three hundred seventy-seven thousand, four hundred seventy-seven".