494731 has 2 divisors, whose sum is σ = 494732. Its totient is φ = 494730.

The previous prime is 494723. The next prime is 494737. The reversal of 494731 is 137494.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 494731 - 2³ = 494723 is a prime.

It is a super-2 number, since 2×494731² = 489517524722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 494731.

It is not a weakly prime, because it can be changed into another prime (494737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247365 + 247366.

It is an arithmetic number, because the mean of its divisors is an integer number (247366).

2⁴⁹⁴⁷³¹ is an apocalyptic number.

494731 is a deficient number, since it is larger than the sum of its proper divisors (1).

494731 is an equidigital number, since it uses as much as digits as its factorization.

494731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 494731 is about 703.3711680187. The cubic root of 494731 is about 79.0902669529.

It can be divided in two parts, 494 and 731, that added together give a triangular number (1225 = T₄₉).

The spelling of 494731 in words is "four hundred ninety-four thousand, seven hundred thirty-one".