904693 has 2 divisors, whose sum is σ = 904694. Its totient is φ = 904692.

The previous prime is 904681. The next prime is 904697. The reversal of 904693 is 396409.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 465124 + 439569 = 682^2 + 663^2 .

It is a cyclic number.

It is not a de Polignac number, because 904693 - 2⁵ = 904661 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452346 + 452347.

It is an arithmetic number, because the mean of its divisors is an integer number (452347).

2⁹⁰⁴⁶⁹³ is an apocalyptic number.

It is an amenable number.

904693 is a deficient number, since it is larger than the sum of its proper divisors (1).

904693 is an equidigital number, since it uses as much as digits as its factorization.

904693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 904693 is about 951.1535102180. The cubic root of 904693 is about 96.7164639715.

The spelling of 904693 in words is "nine hundred four thousand, six hundred ninety-three".