3126698398 has 4 divisors (see below), whose sum is σ = 4690047600. Its totient is φ = 1563349198.

The previous prime is 3126698389. The next prime is 3126698441. The reversal of 3126698398 is 8938966213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8938966213 = 35521 ⋅251653.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 781674598 + ... + 781674601.

It is an arithmetic number, because the mean of its divisors is an integer number (1172511900).

Almost surely, 2^3126698398 is an apocalyptic number.

3126698398 is a deficient number, since it is larger than the sum of its proper divisors (1563349202).

3126698398 is a wasteful number, since it uses less digits than its factorization.

3126698398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563349201.

The product of its digits is 3359232, while the sum is 55.

The square root of 3126698398 is about 55916.8883075587. Note that the first 3 decimals coincide. The cubic root of 3126698398 is about 1462.2736822515.

The spelling of 3126698398 in words is "three billion, one hundred twenty-six million, six hundred ninety-eight thousand, three hundred ninety-eight".