794531021 has 6 divisors (see below), whose sum is σ = 830578350. Its totient is φ = 759985688.

The previous prime is 794530973. The next prime is 794531033. The reversal of 794531021 is 120135497.

It can be written as a sum of positive squares in only one way, i.e., 749116900 + 45414121 = 27370^2 + 6739^2 .

It is not a de Polignac number, because 794531021 - 2¹⁰ = 794529997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (794531041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 750446 + ... + 751503.

It is an arithmetic number, because the mean of its divisors is an integer number (138429725).

Almost surely, 2^794531021 is an apocalyptic number.

It is an amenable number.

794531021 is a deficient number, since it is larger than the sum of its proper divisors (36047329).

794531021 is a wasteful number, since it uses less digits than its factorization.

794531021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501995 (or 1501972 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 794531021 is about 28187.4266473547. The cubic root of 794531021 is about 926.1975319029.

The spelling of 794531021 in words is "seven hundred ninety-four million, five hundred thirty-one thousand, twenty-one".