2821087793 has 16 divisors (see below), whose sum is σ = 2967580800. Its totient is φ = 2676664320.

The previous prime is 2821087771. The next prime is 2821087807. The reversal of 2821087793 is 3977801282.

It is a cyclic number.

It is not a de Polignac number, because 2821087793 - 2¹⁶ = 2821022257 is a prime.

It is a super-2 number, since 2×2821087793² = 15917072671627221698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2821087733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2638463 + ... + 2639531.

It is an arithmetic number, because the mean of its divisors is an integer number (185473800).

Almost surely, 2^2821087793 is an apocalyptic number.

2821087793 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2821087793 is a deficient number, since it is larger than the sum of its proper divisors (146493007).

2821087793 is a wasteful number, since it uses less digits than its factorization.

2821087793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 2821087793 is about 53113.9133655203. The cubic root of 2821087793 is about 1412.9892808635.

The spelling of 2821087793 in words is "two billion, eight hundred twenty-one million, eighty-seven thousand, seven hundred ninety-three".