117769990 has 16 divisors (see below), whose sum is σ = 228292848. Its totient is φ = 43484256.

The previous prime is 117769979. The next prime is 117769997. The reversal of 117769990 is 99967711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117769997) 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, 452832 + ... + 453091.

It is an arithmetic number, because the mean of its divisors is an integer number (14268303).

Almost surely, 2^117769990 is an apocalyptic number.

117769990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117769990 is a deficient number, since it is larger than the sum of its proper divisors (110522858).

117769990 is a wasteful number, since it uses less digits than its factorization.

117769990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905943.

The product of its (nonzero) digits is 214326, while the sum is 49.

The square root of 117769990 is about 10852.1882585956. The cubic root of 117769990 is about 490.1679141308.

The spelling of 117769990 in words is "one hundred seventeen million, seven hundred sixty-nine thousand, nine hundred ninety".