793686409 has 2 divisors, whose sum is σ = 793686410. Its totient is φ = 793686408.

The previous prime is 793686391. The next prime is 793686427. The reversal of 793686409 is 904686397.

It is a balanced prime because it is at equal distance from previous prime (793686391) and next prime (793686427).

It can be written as a sum of positive squares in only one way, i.e., 770617600 + 23068809 = 27760^2 + 4803^2 .

It is a cyclic number.

It is not a de Polignac number, because 793686409 - 2⁷ = 793686281 is a prime.

It is not a weakly prime, because it can be changed into another prime (793686469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396843204 + 396843205.

It is an arithmetic number, because the mean of its divisors is an integer number (396843205).

Almost surely, 2^793686409 is an apocalyptic number.

It is an amenable number.

793686409 is a deficient number, since it is larger than the sum of its proper divisors (1).

793686409 is an equidigital number, since it uses as much as digits as its factorization.

793686409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 793686409 is about 28172.4405936014. The cubic root of 793686409 is about 925.8692229641.

The spelling of 793686409 in words is "seven hundred ninety-three million, six hundred eighty-six thousand, four hundred nine".