116735821 has 8 divisors (see below), whose sum is σ = 124119864. Its totient is φ = 109409280.

The previous prime is 116735813. The next prime is 116735831. The reversal of 116735821 is 128537611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 47196900 + 69538921 = 6870^2 + 8339^2 .

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

It is not a de Polignac number, because 116735821 - 2³ = 116735813 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 (116735831) 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, 10150 + ... + 18343.

It is an arithmetic number, because the mean of its divisors is an integer number (15514983).

Almost surely, 2^116735821 is an apocalyptic number.

It is an amenable number.

116735821 is a deficient number, since it is larger than the sum of its proper divisors (7384043).

116735821 is a wasteful number, since it uses less digits than its factorization.

116735821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28751.

The product of its digits is 10080, while the sum is 34.

The square root of 116735821 is about 10804.4352466938. The cubic root of 116735821 is about 488.7289297414.

The spelling of 116735821 in words is "one hundred sixteen million, seven hundred thirty-five thousand, eight hundred twenty-one".