698139930 has 32 divisors (see below), whose sum is σ = 1748386944. Its totient is φ = 178076096.

The previous prime is 698139913. The next prime is 698139989. The reversal of 698139930 is 39931896.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 698139930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505209 + ... + 506588.

It is an arithmetic number, because the mean of its divisors is an integer number (54637092).

Almost surely, 2^698139930 is an apocalyptic number.

698139930 is an abundant number, since it is smaller than the sum of its proper divisors (1050247014).

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

698139930 is a wasteful number, since it uses less digits than its factorization.

698139930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011830.

The product of its (nonzero) digits is 314928, while the sum is 48.

The square root of 698139930 is about 26422.3377088402. The cubic root of 698139930 is about 887.1168452529.

The spelling of 698139930 in words is "six hundred ninety-eight million, one hundred thirty-nine thousand, nine hundred thirty".