1995790971 has 8 divisors (see below), whose sum is σ = 2684604240. Its totient is φ = 1318752512.

The previous prime is 1995790963. The next prime is 1995790997. The reversal of 1995790971 is 1790975991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1995790971 - 2³ = 1995790963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1995790931) 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, 2943306 + ... + 2943983.

It is an arithmetic number, because the mean of its divisors is an integer number (335575530).

Almost surely, 2^1995790971 is an apocalyptic number.

1995790971 is a deficient number, since it is larger than the sum of its proper divisors (688813269).

1995790971 is a wasteful number, since it uses less digits than its factorization.

1995790971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5887405.

The product of its (nonzero) digits is 1607445, while the sum is 57.

The square root of 1995790971 is about 44674.2763903345. The cubic root of 1995790971 is about 1259.0365884443.

The spelling of 1995790971 in words is "one billion, nine hundred ninety-five million, seven hundred ninety thousand, nine hundred seventy-one".