244977389 has 2 divisors, whose sum is σ = 244977390. Its totient is φ = 244977388.

The previous prime is 244977379. The next prime is 244977437. The reversal of 244977389 is 983779442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155201764 + 89775625 = 12458^2 + 9475^2 .

It is a cyclic number.

It is not a de Polignac number, because 244977389 - 2⁸ = 244977133 is a prime.

It is a super-2 number, since 2×244977389² = 120027842242514642, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 244977389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244977329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122488694 + 122488695.

It is an arithmetic number, because the mean of its divisors is an integer number (122488695).

Almost surely, 2^244977389 is an apocalyptic number.

It is an amenable number.

244977389 is a deficient number, since it is larger than the sum of its proper divisors (1).

244977389 is an equidigital number, since it uses as much as digits as its factorization.

244977389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192, while the sum is 53.

The square root of 244977389 is about 15651.7535439324. The cubic root of 244977389 is about 625.7132244013.

The spelling of 244977389 in words is "two hundred forty-four million, nine hundred seventy-seven thousand, three hundred eighty-nine".