1698348874 has 4 divisors (see below), whose sum is σ = 2547523314. Its totient is φ = 849174436.

The previous prime is 1698348829. The next prime is 1698348881. The reversal of 1698348874 is 4788438961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4788438961 = 2837 ⋅1687853.

It can be written as a sum of positive squares in only one way, i.e., 963667849 + 734681025 = 31043^2 + 27105^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 424587217 + ... + 424587220.

Almost surely, 2^1698348874 is an apocalyptic number.

1698348874 is a deficient number, since it is larger than the sum of its proper divisors (849174440).

1698348874 is an equidigital number, since it uses as much as digits as its factorization.

1698348874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849174439.

The product of its digits is 9289728, while the sum is 58.

The square root of 1698348874 is about 41211.0285481933. The cubic root of 1698348874 is about 1193.0966763484.

The spelling of 1698348874 in words is "one billion, six hundred ninety-eight million, three hundred forty-eight thousand, eight hundred seventy-four".