116779457 has 2 divisors, whose sum is σ = 116779458. Its totient is φ = 116779456.

The previous prime is 116779391. The next prime is 116779471. The reversal of 116779457 is 754977611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62078641 + 54700816 = 7879^2 + 7396^2 .

It is an emirp because it is prime and its reverse (754977611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 116779457 - 2¹⁰ = 116778433 is a prime.

It is not a weakly prime, because it can be changed into another prime (116772457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58389728 + 58389729.

It is an arithmetic number, because the mean of its divisors is an integer number (58389729).

Almost surely, 2^116779457 is an apocalyptic number.

It is an amenable number.

116779457 is a deficient number, since it is larger than the sum of its proper divisors (1).

116779457 is an equidigital number, since it uses as much as digits as its factorization.

116779457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370440, while the sum is 47.

The square root of 116779457 is about 10806.4544139139. The cubic root of 116779457 is about 488.7898179895.

The spelling of 116779457 in words is "one hundred sixteen million, seven hundred seventy-nine thousand, four hundred fifty-seven".