801292621 has 2 divisors, whose sum is σ = 801292622. Its totient is φ = 801292620.

The previous prime is 801292601. The next prime is 801292663. The reversal of 801292621 is 126292108.

801292621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 687016521 + 114276100 = 26211^2 + 10690^2 .

It is a cyclic number.

It is not a de Polignac number, because 801292621 - 2⁹ = 801292109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801292601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400646310 + 400646311.

It is an arithmetic number, because the mean of its divisors is an integer number (400646311).

Almost surely, 2^801292621 is an apocalyptic number.

It is an amenable number.

801292621 is a deficient number, since it is larger than the sum of its proper divisors (1).

801292621 is an equidigital number, since it uses as much as digits as its factorization.

801292621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 801292621 is about 28307.1125514419. The cubic root of 801292621 is about 928.8174822762.

The spelling of 801292621 in words is "eight hundred one million, two hundred ninety-two thousand, six hundred twenty-one".