246997889 has 2 divisors, whose sum is σ = 246997890. Its totient is φ = 246997888.

The previous prime is 246997871. The next prime is 246997921. The reversal of 246997889 is 988799642.

246997889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130530625 + 116467264 = 11425^2 + 10792^2 .

It is a cyclic number.

It is not a de Polignac number, because 246997889 - 2²⁰ = 245949313 is a prime.

It is a super-2 number, since 2×246997889² = 122015914340912642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (246997789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123498944 + 123498945.

It is an arithmetic number, because the mean of its divisors is an integer number (123498945).

Almost surely, 2^246997889 is an apocalyptic number.

It is an amenable number.

246997889 is a deficient number, since it is larger than the sum of its proper divisors (1).

246997889 is an equidigital number, since it uses as much as digits as its factorization.

246997889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 62.

The square root of 246997889 is about 15716.1664855015. The cubic root of 246997889 is about 627.4287482787.

The spelling of 246997889 in words is "two hundred forty-six million, nine hundred ninety-seven thousand, eight hundred eighty-nine".