698741658 has 24 divisors (see below), whose sum is σ = 1549149888. Its totient is φ = 227497032.

The previous prime is 698741657. The next prime is 698741671. The reversal of 698741658 is 856147896.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (698741651) 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 in 11 ways as a sum of consecutive naturals, for example, 450610 + ... + 452157.

It is an arithmetic number, because the mean of its divisors is an integer number (64547912).

Almost surely, 2^698741658 is an apocalyptic number.

698741658 is an abundant number, since it is smaller than the sum of its proper divisors (850408230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

698741658 is a wasteful number, since it uses less digits than its factorization.

698741658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902818 (or 902815 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 698741658 is about 26433.7219853732. The cubic root of 698741658 is about 887.3716412394.

The spelling of 698741658 in words is "six hundred ninety-eight million, seven hundred forty-one thousand, six hundred fifty-eight".