795047021 has 2 divisors, whose sum is σ = 795047022. Its totient is φ = 795047020.

The previous prime is 795046969. The next prime is 795047023. The reversal of 795047021 is 120740597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 648975625 + 146071396 = 25475^2 + 12086^2 .

It is an emirp because it is prime and its reverse (120740597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 795047021 - 2¹⁰ = 795045997 is a prime.

Together with 795047023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (795047023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 397523510 + 397523511.

It is an arithmetic number, because the mean of its divisors is an integer number (397523511).

Almost surely, 2^795047021 is an apocalyptic number.

It is an amenable number.

795047021 is a deficient number, since it is larger than the sum of its proper divisors (1).

795047021 is an equidigital number, since it uses as much as digits as its factorization.

795047021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 795047021 is about 28196.5781789209. The cubic root of 795047021 is about 926.3979916674.

The spelling of 795047021 in words is "seven hundred ninety-five million, forty-seven thousand, twenty-one".