117579819 has 16 divisors (see below), whose sum is σ = 179552768. Its totient is φ = 67044672.

The previous prime is 117579793. The next prime is 117579829. The reversal of 117579819 is 918975711.

It is not a de Polignac number, because 117579819 - 2⁷ = 117579691 is a prime.

It is a super-2 number, since 2×117579819² = 27650027672145522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117579829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4479 + ... + 15975.

It is an arithmetic number, because the mean of its divisors is an integer number (11222048).

Almost surely, 2^117579819 is an apocalyptic number.

117579819 is a deficient number, since it is larger than the sum of its proper divisors (61972949).

117579819 is a wasteful number, since it uses less digits than its factorization.

117579819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11994.

The product of its digits is 158760, while the sum is 48.

The square root of 117579819 is about 10843.4228452090. The cubic root of 117579819 is about 489.9039364646.

The spelling of 117579819 in words is "one hundred seventeen million, five hundred seventy-nine thousand, eight hundred nineteen".