117738477 has 24 divisors (see below), whose sum is σ = 176061600. Its totient is φ = 75759840.

The previous prime is 117738461. The next prime is 117738529. The reversal of 117738477 is 774837711.

117738477 is a `hidden beast` number, since 1 + 177 + 3 + 8 + 477 = 666.

It is not a de Polignac number, because 117738477 - 2⁴ = 117738461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117738457) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42274 + ... + 44972.

It is an arithmetic number, because the mean of its divisors is an integer number (7335900).

Almost surely, 2^117738477 is an apocalyptic number.

It is an amenable number.

117738477 is a deficient number, since it is larger than the sum of its proper divisors (58323123).

117738477 is a wasteful number, since it uses less digits than its factorization.

117738477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873 (or 2870 counting only the distinct ones).

The product of its digits is 230496, while the sum is 45.

The square root of 117738477 is about 10850.7362423017. The cubic root of 117738477 is about 490.1241903733.

The spelling of 117738477 in words is "one hundred seventeen million, seven hundred thirty-eight thousand, four hundred seventy-seven".