1797748898 has 16 divisors (see below), whose sum is σ = 2942921376. Its totient is φ = 816839040.

The previous prime is 1797748879. The next prime is 1797748903. The reversal of 1797748898 is 8988477971.

It is a super-2 number, since 2×1797748898² = 6463802200520428808, which contains 22 as substring.

It is a Curzon 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, 47090 + ... + 76242.

It is an arithmetic number, because the mean of its divisors is an integer number (183932586).

Almost surely, 2^1797748898 is an apocalyptic number.

1797748898 is a deficient number, since it is larger than the sum of its proper divisors (1145172478).

1797748898 is a wasteful number, since it uses less digits than its factorization.

1797748898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31969.

The product of its digits is 56899584, while the sum is 68.

The square root of 1797748898 is about 42399.8690799866. The cubic root of 1797748898 is about 1215.9330891629.

The spelling of 1797748898 in words is "one billion, seven hundred ninety-seven million, seven hundred forty-eight thousand, eight hundred ninety-eight".