403849673 has 2 divisors, whose sum is σ = 403849674. Its totient is φ = 403849672.

The previous prime is 403849661. The next prime is 403849681. The reversal of 403849673 is 376948304.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280462009 + 123387664 = 16747^2 + 11108^2 .

It is a cyclic number.

It is not a de Polignac number, because 403849673 - 2⁸ = 403849417 is a prime.

It is not a weakly prime, because it can be changed into another prime (403849613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201924836 + 201924837.

It is an arithmetic number, because the mean of its divisors is an integer number (201924837).

Almost surely, 2^403849673 is an apocalyptic number.

It is an amenable number.

403849673 is a deficient number, since it is larger than the sum of its proper divisors (1).

403849673 is an equidigital number, since it uses as much as digits as its factorization.

403849673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 403849673 is about 20096.0113704188. The cubic root of 403849673 is about 739.1624764902.

The spelling of 403849673 in words is "four hundred three million, eight hundred forty-nine thousand, six hundred seventy-three".