116821705 has 64 divisors (see below), whose sum is σ = 199438848. Its totient is φ = 63221760.

The previous prime is 116821687. The next prime is 116821717. The reversal of 116821705 is 507128611.

It is not a de Polignac number, because 116821705 - 2²³ = 108433097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 84399 + ... + 85771.

It is an arithmetic number, because the mean of its divisors is an integer number (3116232).

Almost surely, 2^116821705 is an apocalyptic number.

It is an amenable number.

116821705 is a deficient number, since it is larger than the sum of its proper divisors (82617143).

116821705 is a wasteful number, since it uses less digits than its factorization.

116821705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 116821705 is about 10808.4089948521. The cubic root of 116821705 is about 488.8487550177.

The spelling of 116821705 in words is "one hundred sixteen million, eight hundred twenty-one thousand, seven hundred five".