116961820 has 24 divisors (see below), whose sum is σ = 246657600. Its totient is φ = 46587072.

The previous prime is 116961811. The next prime is 116961821. The reversal of 116961820 is 28169611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116961821) 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, 7455 + ... + 17014.

It is an arithmetic number, because the mean of its divisors is an integer number (10277400).

Almost surely, 2^116961820 is an apocalyptic number.

116961820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116961820 is an abundant number, since it is smaller than the sum of its proper divisors (129695780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116961820 is a wasteful number, since it uses less digits than its factorization.

116961820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24717 (or 24715 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 116961820 is about 10814.8888112638. Note that the first 4 decimals coincide. The cubic root of 116961820 is about 489.0441173362.

The spelling of 116961820 in words is "one hundred sixteen million, nine hundred sixty-one thousand, eight hundred twenty".