116721373 has 4 divisors (see below), whose sum is σ = 118365408. Its totient is φ = 115077340.

The previous prime is 116721359. The next prime is 116721377. The reversal of 116721373 is 373127611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116721373 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 (116721377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821911 + ... + 822052.

It is an arithmetic number, because the mean of its divisors is an integer number (29591352).

Almost surely, 2^116721373 is an apocalyptic number.

It is an amenable number.

116721373 is a deficient number, since it is larger than the sum of its proper divisors (1644035).

116721373 is an equidigital number, since it uses as much as digits as its factorization.

116721373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644034.

The product of its digits is 5292, while the sum is 31.

The square root of 116721373 is about 10803.7666116961. The cubic root of 116721373 is about 488.7087661308.

Adding to 116721373 its reverse (373127611), we get a palindrome (489848984).

The spelling of 116721373 in words is "one hundred sixteen million, seven hundred twenty-one thousand, three hundred seventy-three".