903949349 has 2 divisors, whose sum is σ = 903949350. Its totient is φ = 903949348.

The previous prime is 903949337. The next prime is 903949373. The reversal of 903949349 is 943949309.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 753886849 + 150062500 = 27457^2 + 12250^2 .

It is a cyclic number.

It is not a de Polignac number, because 903949349 - 2²⁰ = 902900773 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 903949297 and 903949306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (903949379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451974674 + 451974675.

It is an arithmetic number, because the mean of its divisors is an integer number (451974675).

Almost surely, 2^903949349 is an apocalyptic number.

It is an amenable number.

903949349 is a deficient number, since it is larger than the sum of its proper divisors (1).

903949349 is an equidigital number, since it uses as much as digits as its factorization.

903949349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 944784, while the sum is 50.

The square root of 903949349 is about 30065.7504313463. The cubic root of 903949349 is about 966.8995663296.

The spelling of 903949349 in words is "nine hundred three million, nine hundred forty-nine thousand, three hundred forty-nine".