117772685 has 8 divisors (see below), whose sum is σ = 149640696. Its totient is φ = 88675840.

The previous prime is 117772679. The next prime is 117772687. The reversal of 117772685 is 586277711.

It can be written as a sum of positive squares in 4 ways, for example, as 26894596 + 90878089 = 5186^2 + 9533^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 117772685 - 2¹² = 117768589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117772687) 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 in 7 ways as a sum of consecutive naturals, for example, 692696 + ... + 692865.

It is an arithmetic number, because the mean of its divisors is an integer number (18705087).

Almost surely, 2^117772685 is an apocalyptic number.

It is an amenable number.

117772685 is a deficient number, since it is larger than the sum of its proper divisors (31868011).

117772685 is a wasteful number, since it uses less digits than its factorization.

117772685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385583.

The product of its digits is 164640, while the sum is 44.

The square root of 117772685 is about 10852.3124263910. The cubic root of 117772685 is about 490.1716530359.

The spelling of 117772685 in words is "one hundred seventeen million, seven hundred seventy-two thousand, six hundred eighty-five".