2903949 has 12 divisors (see below), whose sum is σ = 4215900. Its totient is φ = 1926144.

The previous prime is 2903947. The next prime is 2903959. The reversal of 2903949 is 9493092.

It can be written as a sum of positive squares in 2 ways, for example, as 1232100 + 1671849 = 1110^2 + 1293^2 .

It is not a de Polignac number, because 2903949 - 2¹ = 2903947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2903947) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1357 + ... + 2765.

It is an arithmetic number, because the mean of its divisors is an integer number (351325).

2^2903949 is an apocalyptic number.

It is an amenable number.

2903949 is a deficient number, since it is larger than the sum of its proper divisors (1311951).

2903949 is a wasteful number, since it uses less digits than its factorization.

2903949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 2903949 is about 1704.0977084663. The cubic root of 2903949 is about 142.6690146012.

The spelling of 2903949 in words is "two million, nine hundred three thousand, nine hundred forty-nine".