117900690 has 16 divisors (see below), whose sum is σ = 282961728. Its totient is φ = 31440176.

The previous prime is 117900659. The next prime is 117900721. The reversal of 117900690 is 96009711.

It is an interprime number because it is at equal distance from previous prime (117900659) and next prime (117900721).

It is a super-2 number, since 2×117900690² = 27801145404952200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964982 + ... + 1965041.

It is an arithmetic number, because the mean of its divisors is an integer number (17685108).

Almost surely, 2^117900690 is an apocalyptic number.

117900690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117900690 is an abundant number, since it is smaller than the sum of its proper divisors (165061038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117900690 is a wasteful number, since it uses less digits than its factorization.

117900690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3930033.

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 117900690 is about 10858.2084157563. The cubic root of 117900690 is about 490.3491749693.

The spelling of 117900690 in words is "one hundred seventeen million, nine hundred thousand, six hundred ninety".