1247606 has 4 divisors (see below), whose sum is σ = 1871412. Its totient is φ = 623802.

The previous prime is 1247599. The next prime is 1247611. The reversal of 1247606 is 6067421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6067421 = 103 ⋅58907.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311900 + ... + 311903.

It is an arithmetic number, because the mean of its divisors is an integer number (467853).

2^1247606 is an apocalyptic number.

1247606 is a deficient number, since it is larger than the sum of its proper divisors (623806).

1247606 is an equidigital number, since it uses as much as digits as its factorization.

1247606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623805.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1247606 is about 1116.9628462935. The cubic root of 1247606 is about 107.6529209970.

The spelling of 1247606 in words is "one million, two hundred forty-seven thousand, six hundred six".