698145842 has 12 divisors (see below), whose sum is σ = 1105237566. Its totient is φ = 330700320.

The previous prime is 698145821. The next prime is 698145857. The reversal of 698145842 is 248541896.

698145842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 406385281 + 291760561 = 20159^2 + 17081^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 482759 + ... + 484202.

Almost surely, 2^698145842 is an apocalyptic number.

698145842 is a deficient number, since it is larger than the sum of its proper divisors (407091724).

698145842 is a wasteful number, since it uses less digits than its factorization.

698145842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967001 (or 966982 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The square root of 698145842 is about 26422.4495836400. The cubic root of 698145842 is about 887.1193493449.

The spelling of 698145842 in words is "six hundred ninety-eight million, one hundred forty-five thousand, eight hundred forty-two".