998470579 has 2 divisors, whose sum is σ = 998470580. Its totient is φ = 998470578.

The previous prime is 998470553. The next prime is 998470633. The reversal of 998470579 is 975074899.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 998470579 - 2²³ = 990081971 is a prime.

It is not a weakly prime, because it can be changed into another prime (998479579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499235289 + 499235290.

It is an arithmetic number, because the mean of its divisors is an integer number (499235290).

Almost surely, 2^998470579 is an apocalyptic number.

998470579 is a deficient number, since it is larger than the sum of its proper divisors (1).

998470579 is an equidigital number, since it uses as much as digits as its factorization.

998470579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 58.

The square root of 998470579 is about 31598.5850790823. The cubic root of 998470579 is about 999.4899328758.

The spelling of 998470579 in words is "nine hundred ninety-eight million, four hundred seventy thousand, five hundred seventy-nine".