117863690 has 16 divisors (see below), whose sum is σ = 242462592. Its totient is φ = 40410384.

The previous prime is 117863677. The next prime is 117863693. The reversal of 117863690 is 96368711.

It is a super-2 number, since 2×117863690² = 27783698840832200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117863693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841814 + ... + 841953.

It is an arithmetic number, because the mean of its divisors is an integer number (15153912).

Almost surely, 2^117863690 is an apocalyptic number.

117863690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117863690 is an abundant number, since it is smaller than the sum of its proper divisors (124598902).

117863690 is a wasteful number, since it uses less digits than its factorization.

117863690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683781.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 117863690 is about 10856.5045019104. The cubic root of 117863690 is about 490.2978752478.

The spelling of 117863690 in words is "one hundred seventeen million, eight hundred sixty-three thousand, six hundred ninety".