1246407 has 4 divisors (see below), whose sum is σ = 1661880. Its totient is φ = 830936.

The previous prime is 1246397. The next prime is 1246429. The reversal of 1246407 is 7046421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7046421 = 3 ⋅2348807.

It is a cyclic number.

It is not a de Polignac number, because 1246407 - 2¹¹ = 1244359 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1246477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207732 + ... + 207737.

It is an arithmetic number, because the mean of its divisors is an integer number (415470).

2^1246407 is an apocalyptic number.

1246407 is a deficient number, since it is larger than the sum of its proper divisors (415473).

1246407 is an equidigital number, since it uses as much as digits as its factorization.

1246407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415472.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1246407 is about 1116.4259939647. The cubic root of 1246407 is about 107.6184236682.

It can be divided in two parts, 1246 and 407, that added together give a triangular number (1653 = T₅₇).

The spelling of 1246407 in words is "one million, two hundred forty-six thousand, four hundred seven".