116857649 has 2 divisors, whose sum is σ = 116857650. Its totient is φ = 116857648.

The previous prime is 116857613. The next prime is 116857673. The reversal of 116857649 is 946758611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100801600 + 16056049 = 10040^2 + 4007^2 .

It is a cyclic number.

It is not a de Polignac number, because 116857649 - 2⁸ = 116857393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116857679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58428824 + 58428825.

It is an arithmetic number, because the mean of its divisors is an integer number (58428825).

Almost surely, 2^116857649 is an apocalyptic number.

It is an amenable number.

116857649 is a deficient number, since it is larger than the sum of its proper divisors (1).

116857649 is an equidigital number, since it uses as much as digits as its factorization.

116857649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 116857649 is about 10810.0716463861. The cubic root of 116857649 is about 488.8988866202.

The spelling of 116857649 in words is "one hundred sixteen million, eight hundred fifty-seven thousand, six hundred forty-nine".