117984651 has 8 divisors (see below), whose sum is σ = 158552064. Its totient is φ = 78036840.

The previous prime is 117984649. The next prime is 117984653. The reversal of 117984651 is 156489711.

It is an interprime number because it is at equal distance from previous prime (117984649) and next prime (117984653).

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

It is not a de Polignac number, because 117984651 - 2¹ = 117984649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117984653) 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, 154455 + ... + 155216.

It is an arithmetic number, because the mean of its divisors is an integer number (19819008).

Almost surely, 2^117984651 is an apocalyptic number.

117984651 is a deficient number, since it is larger than the sum of its proper divisors (40567413).

117984651 is a wasteful number, since it uses less digits than its factorization.

117984651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309801.

The product of its digits is 60480, while the sum is 42.

The square root of 117984651 is about 10862.0739732337. The cubic root of 117984651 is about 490.4655453317.

The spelling of 117984651 in words is "one hundred seventeen million, nine hundred eighty-four thousand, six hundred fifty-one".