1347664 has 10 divisors (see below), whose sum is σ = 2611130. Its totient is φ = 673824.

The previous prime is 1347637. The next prime is 1347667. The reversal of 1347664 is 4667431.

It can be written as a sum of positive squares in only one way, i.e., 846400 + 501264 = 920^2 + 708^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1347667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42099 + ... + 42130.

It is an arithmetic number, because the mean of its divisors is an integer number (261113).

2^1347664 is an apocalyptic number.

It is an amenable number.

1347664 is a deficient number, since it is larger than the sum of its proper divisors (1263466).

1347664 is an equidigital number, since it uses as much as digits as its factorization.

1347664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84237 (or 84231 counting only the distinct ones).

The product of its digits is 12096, while the sum is 31.

The square root of 1347664 is about 1160.8893142759. The cubic root of 1347664 is about 110.4571607655.

The spelling of 1347664 in words is "one million, three hundred forty-seven thousand, six hundred sixty-four".