698025479 has 2 divisors, whose sum is σ = 698025480. Its totient is φ = 698025478.

The previous prime is 698025473. The next prime is 698025499. The reversal of 698025479 is 974520896.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 698025479 - 2⁴ = 698025463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (698025473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349012739 + 349012740.

It is an arithmetic number, because the mean of its divisors is an integer number (349012740).

Almost surely, 2^698025479 is an apocalyptic number.

698025479 is a deficient number, since it is larger than the sum of its proper divisors (1).

698025479 is an equidigital number, since it uses as much as digits as its factorization.

698025479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 698025479 is about 26420.1718200318. The cubic root of 698025479 is about 887.0683654976.

The spelling of 698025479 in words is "six hundred ninety-eight million, twenty-five thousand, four hundred seventy-nine".