988770479 has 2 divisors, whose sum is σ = 988770480. Its totient is φ = 988770478.

The previous prime is 988770449. The next prime is 988770487. The reversal of 988770479 is 974077889.

It is a strong prime.

It is an emirp because it is prime and its reverse (974077889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 988770479 - 2¹⁶ = 988704943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (988770449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494385239 + 494385240.

It is an arithmetic number, because the mean of its divisors is an integer number (494385240).

Almost surely, 2^988770479 is an apocalyptic number.

988770479 is a deficient number, since it is larger than the sum of its proper divisors (1).

988770479 is an equidigital number, since it uses as much as digits as its factorization.

988770479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7112448, while the sum is 59.

The square root of 988770479 is about 31444.7210036915. The cubic root of 988770479 is about 996.2427269129.

The spelling of 988770479 in words is "nine hundred eighty-eight million, seven hundred seventy thousand, four hundred seventy-nine".