1797047970 has 16 divisors (see below), whose sum is σ = 4312915200. Its totient is φ = 479212784.

The previous prime is 1797047963. The next prime is 1797047971. The reversal of 1797047970 is 797407971.

It is a super-2 number, since 2×1797047970² = 6458762812962241800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1797047971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29950770 + ... + 29950829.

It is an arithmetic number, because the mean of its divisors is an integer number (269557200).

Almost surely, 2^1797047970 is an apocalyptic number.

1797047970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1797047970 is an abundant number, since it is smaller than the sum of its proper divisors (2515867230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1797047970 is a wasteful number, since it uses less digits than its factorization.

1797047970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59901609.

The product of its (nonzero) digits is 777924, while the sum is 51.

The square root of 1797047970 is about 42391.6025882485. The cubic root of 1797047970 is about 1215.7750410731.

The spelling of 1797047970 in words is "one billion, seven hundred ninety-seven million, forty-seven thousand, nine hundred seventy".