1797427955 has 16 divisors (see below), whose sum is σ = 2199978144. Its totient is φ = 1409291520.

The previous prime is 1797427937. The next prime is 1797427967. The reversal of 1797427955 is 5597247971.

It is not a de Polignac number, because 1797427955 - 2²⁰ = 1796379379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1797427955.

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, 286007 + ... + 292223.

It is an arithmetic number, because the mean of its divisors is an integer number (137498634).

Almost surely, 2^1797427955 is an apocalyptic number.

1797427955 is a deficient number, since it is larger than the sum of its proper divisors (402550189).

1797427955 is a wasteful number, since it uses less digits than its factorization.

1797427955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7366.

The product of its digits is 5556600, while the sum is 56.

The square root of 1797427955 is about 42396.0841941800. The cubic root of 1797427955 is about 1215.8607267325.

The spelling of 1797427955 in words is "one billion, seven hundred ninety-seven million, four hundred twenty-seven thousand, nine hundred fifty-five".