406794993 has 12 divisors (see below), whose sum is σ = 591870384. Its totient is φ = 246472200.

The previous prime is 406794967. The next prime is 406795001. The reversal of 406794993 is 399497604.

It is not a de Polignac number, because 406794993 - 2⁵ = 406794961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406794923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114108 + ... + 117618.

It is an arithmetic number, because the mean of its divisors is an integer number (49322532).

Almost surely, 2^406794993 is an apocalyptic number.

It is an amenable number.

406794993 is a deficient number, since it is larger than the sum of its proper divisors (185075391).

406794993 is an frugal number, since it uses more digits than its factorization.

406794993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7036 (or 3525 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 406794993 is about 20169.1594519950. The cubic root of 406794993 is about 740.9550567280.

The spelling of 406794993 in words is "four hundred six million, seven hundred ninety-four thousand, nine hundred ninety-three".