698080819 has 2 divisors, whose sum is σ = 698080820. Its totient is φ = 698080818.

The previous prime is 698080811. The next prime is 698080829. The reversal of 698080819 is 918080896.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 698080819 - 2³ = 698080811 is a prime.

It is a super-2 number, since 2×698080819² = 974633659711421522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (698080811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349040409 + 349040410.

It is an arithmetic number, because the mean of its divisors is an integer number (349040410).

Almost surely, 2^698080819 is an apocalyptic number.

698080819 is a deficient number, since it is larger than the sum of its proper divisors (1).

698080819 is an equidigital number, since it uses as much as digits as its factorization.

698080819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 698080819 is about 26421.2191051057. The cubic root of 698080819 is about 887.0918073669.

The spelling of 698080819 in words is "six hundred ninety-eight million, eighty thousand, eight hundred nineteen".