2398998977 has 2 divisors, whose sum is σ = 2398998978. Its totient is φ = 2398998976.

The previous prime is 2398998841. The next prime is 2398999037. The reversal of 2398998977 is 7798998932.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1727981761 + 671017216 = 41569^2 + 25904^2 .

It is a cyclic number.

It is not a de Polignac number, because 2398998977 - 2¹⁶ = 2398933441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2398998977.

It is not a weakly prime, because it can be changed into another prime (2398994977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199499488 + 1199499489.

It is an arithmetic number, because the mean of its divisors is an integer number (1199499489).

Almost surely, 2^2398998977 is an apocalyptic number.

It is an amenable number.

2398998977 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398998977 is an equidigital number, since it uses as much as digits as its factorization.

2398998977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 123451776, while the sum is 71.

The square root of 2398998977 is about 48979.5771419068. The cubic root of 2398998977 is about 1338.6797304508.

The spelling of 2398998977 in words is "two billion, three hundred ninety-eight million, nine hundred ninety-eight thousand, nine hundred seventy-seven".