403849 has 2 divisors, whose sum is σ = 403850. Its totient is φ = 403848.

The previous prime is 403831. The next prime is 403861. The reversal of 403849 is 948304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322624 + 81225 = 568^2 + 285^2 .

It is a cyclic number.

It is not a de Polignac number, because 403849 - 2⁵ = 403817 is a prime.

It is not a weakly prime, because it can be changed into another prime (403829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201924 + 201925.

It is an arithmetic number, because the mean of its divisors is an integer number (201925).

2⁴⁰³⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

403849 is a deficient number, since it is larger than the sum of its proper divisors (1).

403849 is an equidigital number, since it uses as much as digits as its factorization.

403849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 403849 is about 635.4911486402. The cubic root of 403849 is about 73.9162065895.

The spelling of 403849 in words is "four hundred three thousand, eight hundred forty-nine".