117870854 has 4 divisors (see below), whose sum is σ = 176806284. Its totient is φ = 58935426.

The previous prime is 117870853. The next prime is 117870881. The reversal of 117870854 is 458078711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 458078711 = 3049 ⋅150239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117870853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29467712 + ... + 29467715.

It is an arithmetic number, because the mean of its divisors is an integer number (44201571).

Almost surely, 2^117870854 is an apocalyptic number.

117870854 is a deficient number, since it is larger than the sum of its proper divisors (58935430).

117870854 is an equidigital number, since it uses as much as digits as its factorization.

117870854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58935429.

The product of its (nonzero) digits is 62720, while the sum is 41.

The square root of 117870854 is about 10856.8344373487. The cubic root of 117870854 is about 490.3078088211.

The spelling of 117870854 in words is "one hundred seventeen million, eight hundred seventy thousand, eight hundred fifty-four".