1613993398 has 16 divisors (see below), whose sum is σ = 2542991616. Its totient is φ = 766794600.

The previous prime is 1613993389. The next prime is 1613993401. The reversal of 1613993398 is 8933993161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109236 + ... + 123127.

It is an arithmetic number, because the mean of its divisors is an integer number (158936976).

Almost surely, 2^1613993398 is an apocalyptic number.

1613993398 is a deficient number, since it is larger than the sum of its proper divisors (928998218).

1613993398 is a wasteful number, since it uses less digits than its factorization.

1613993398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232539.

The product of its digits is 944784, while the sum is 52.

The square root of 1613993398 is about 40174.5366868120. The cubic root of 1613993398 is about 1173.0069482340.

The spelling of 1613993398 in words is "one billion, six hundred thirteen million, nine hundred ninety-three thousand, three hundred ninety-eight".