403746949 has 2 divisors, whose sum is σ = 403746950. Its totient is φ = 403746948.

The previous prime is 403746947. The next prime is 403746977. The reversal of 403746949 is 949647304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355888225 + 47858724 = 18865^2 + 6918^2 .

It is a cyclic number.

It is not a de Polignac number, because 403746949 - 2¹ = 403746947 is a prime.

Together with 403746947, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 403746899 and 403746908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (403746947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201873474 + 201873475.

It is an arithmetic number, because the mean of its divisors is an integer number (201873475).

Almost surely, 2^403746949 is an apocalyptic number.

It is an amenable number.

403746949 is a deficient number, since it is larger than the sum of its proper divisors (1).

403746949 is an equidigital number, since it uses as much as digits as its factorization.

403746949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 403746949 is about 20093.4553773113. The cubic root of 403746949 is about 739.0997995669.

The spelling of 403746949 in words is "four hundred three million, seven hundred forty-six thousand, nine hundred forty-nine".