117873547 has 4 divisors (see below), whose sum is σ = 128589336. Its totient is φ = 107157760.

The previous prime is 117873541. The next prime is 117873593. The reversal of 117873547 is 745378711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117873547 - 2¹¹ = 117871499 is a prime.

It is a super-2 number, since 2×117873547² = 27788346164722418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117873541) 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, 5357878 + ... + 5357899.

It is an arithmetic number, because the mean of its divisors is an integer number (32147334).

Almost surely, 2^117873547 is an apocalyptic number.

117873547 is a deficient number, since it is larger than the sum of its proper divisors (10715789).

117873547 is a wasteful number, since it uses less digits than its factorization.

117873547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10715788.

The product of its digits is 164640, while the sum is 43.

The square root of 117873547 is about 10856.9584599003. The cubic root of 117873547 is about 490.3115428198.

The spelling of 117873547 in words is "one hundred seventeen million, eight hundred seventy-three thousand, five hundred forty-seven".