1347904 has 14 divisors (see below), whose sum is σ = 2674874. Its totient is φ = 673920.

The previous prime is 1347901. The next prime is 1347919. The reversal of 1347904 is 4097431.

It can be written as a sum of positive squares in only one way, i.e., 1345600 + 2304 = 1160^2 + 48^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10467 + ... + 10594.

2^1347904 is an apocalyptic number.

It is an amenable number.

1347904 is a deficient number, since it is larger than the sum of its proper divisors (1326970).

1347904 is an equidigital number, since it uses as much as digits as its factorization.

1347904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21073 (or 21063 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1347904 is about 1160.9926787022. The cubic root of 1347904 is about 110.4637173318.

The spelling of 1347904 in words is "one million, three hundred forty-seven thousand, nine hundred four".