116649769 has 2 divisors, whose sum is σ = 116649770. Its totient is φ = 116649768.

The previous prime is 116649737. The next prime is 116649781. The reversal of 116649769 is 967946611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77211369 + 39438400 = 8787^2 + 6280^2 .

It is a cyclic number.

It is not a de Polignac number, because 116649769 - 2⁵ = 116649737 is a prime.

It is a super-2 number, since 2×116649769² = 27214337215506722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (116749769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58324884 + 58324885.

It is an arithmetic number, because the mean of its divisors is an integer number (58324885).

Almost surely, 2^116649769 is an apocalyptic number.

It is an amenable number.

116649769 is a deficient number, since it is larger than the sum of its proper divisors (1).

116649769 is an equidigital number, since it uses as much as digits as its factorization.

116649769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 49.

The square root of 116649769 is about 10800.4522590492. The cubic root of 116649769 is about 488.6088111133.

The spelling of 116649769 in words is "one hundred sixteen million, six hundred forty-nine thousand, seven hundred sixty-nine".