1373247 has 16 divisors (see below), whose sum is σ = 2052960. Its totient is φ = 907200.

The previous prime is 1373233. The next prime is 1373321. The reversal of 1373247 is 7423731.

It is not a de Polignac number, because 1373247 - 2⁸ = 1372991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

1373247 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1373247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4747 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (128310).

2^1373247 is an apocalyptic number.

1373247 is a deficient number, since it is larger than the sum of its proper divisors (679713).

1373247 is a wasteful number, since it uses less digits than its factorization.

1373247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 465 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 1373247 is about 1171.8562198495. The cubic root of 1373247 is about 111.1517282245.

Adding to 1373247 its reverse (7423731), we get a palindrome (8796978).

It can be divided in two parts, 1 and 373247, that added together give a cube (373248 = 72³).

The spelling of 1373247 in words is "one million, three hundred seventy-three thousand, two hundred forty-seven".