988770449 has 2 divisors, whose sum is σ = 988770450. Its totient is φ = 988770448.

The previous prime is 988770401. The next prime is 988770479. The reversal of 988770449 is 944077889.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 740928400 + 247842049 = 27220^2 + 15743^2 .

It is a cyclic number.

It is not a de Polignac number, because 988770449 - 2⁸ = 988770193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 988770394 and 988770403.

It is not a weakly prime, because it can be changed into another prime (988770479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494385224 + 494385225.

It is an arithmetic number, because the mean of its divisors is an integer number (494385225).

Almost surely, 2^988770449 is an apocalyptic number.

It is an amenable number.

988770449 is a deficient number, since it is larger than the sum of its proper divisors (1).

988770449 is an equidigital number, since it uses as much as digits as its factorization.

988770449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The square root of 988770449 is about 31444.7205266639. The cubic root of 988770449 is about 996.2427168373.

The spelling of 988770449 in words is "nine hundred eighty-eight million, seven hundred seventy thousand, four hundred forty-nine".