1021996795 has 32 divisors (see below), whose sum is σ = 1330790400. Its totient is φ = 750819456.

The previous prime is 1021996793. The next prime is 1021996799. The reversal of 1021996795 is 5976991201.

It is a cyclic number.

It is not a de Polignac number, because 1021996795 - 2¹ = 1021996793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021996793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1683382 + ... + 1683988.

It is an arithmetic number, because the mean of its divisors is an integer number (41587200).

Almost surely, 2^1021996795 is an apocalyptic number.

1021996795 is a deficient number, since it is larger than the sum of its proper divisors (308793605).

1021996795 is a wasteful number, since it uses less digits than its factorization.

1021996795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147.

The product of its (nonzero) digits is 306180, while the sum is 49.

The square root of 1021996795 is about 31968.6845991511. The cubic root of 1021996795 is about 1007.2791504050.

The spelling of 1021996795 in words is "one billion, twenty-one million, nine hundred ninety-six thousand, seven hundred ninety-five".