116421986 has 16 divisors (see below), whose sum is σ = 177962400. Its totient is φ = 57105408.

The previous prime is 116421983. The next prime is 116422003. The reversal of 116421986 is 689124611.

It is not an unprimeable number, because it can be changed into a prime (116421983) 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, 90101 + ... + 91383.

It is an arithmetic number, because the mean of its divisors is an integer number (11122650).

Almost surely, 2^116421986 is an apocalyptic number.

116421986 is a deficient number, since it is larger than the sum of its proper divisors (61540414).

116421986 is a wasteful number, since it uses less digits than its factorization.

116421986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113.

The product of its digits is 20736, while the sum is 38.

The square root of 116421986 is about 10789.9020384802. The cubic root of 116421986 is about 488.2905670115.

The spelling of 116421986 in words is "one hundred sixteen million, four hundred twenty-one thousand, nine hundred eighty-six".