117974644 has 6 divisors (see below), whose sum is σ = 206455634. Its totient is φ = 58987320.

The previous prime is 117974641. The next prime is 117974677. The reversal of 117974644 is 446479711.

It can be written as a sum of positive squares in only one way, i.e., 72250000 + 45724644 = 8500^2 + 6762^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117974644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117974641) by changing a digit.

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 as a sum of consecutive naturals, namely, 14746827 + ... + 14746834.

Almost surely, 2^117974644 is an apocalyptic number.

It is an amenable number.

117974644 is a deficient number, since it is larger than the sum of its proper divisors (88480990).

117974644 is a wasteful number, since it uses less digits than its factorization.

117974644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29493665 (or 29493663 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 117974644 is about 10861.6133239957. The cubic root of 117974644 is about 490.4516784785.

The spelling of 117974644 in words is "one hundred seventeen million, nine hundred seventy-four thousand, six hundred forty-four".