1372399 has 8 divisors (see below), whose sum is σ = 1595520. Its totient is φ = 1156056.

The previous prime is 1372391. The next prime is 1372403. The reversal of 1372399 is 9932731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1372399 - 2³ = 1372391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372391) 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 7 ways as a sum of consecutive naturals, for example, 1249 + ... + 2074.

It is an arithmetic number, because the mean of its divisors is an integer number (199440).

2^1372399 is an apocalyptic number.

1372399 is a deficient number, since it is larger than the sum of its proper divisors (223121).

1372399 is an equidigital number, since it uses as much as digits as its factorization.

1372399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389.

The product of its digits is 10206, while the sum is 34.

The square root of 1372399 is about 1171.4943448434. The cubic root of 1372399 is about 111.1288442437.

It can be divided in two parts, 1372 and 399, that added together give a palindrome (1771).

The spelling of 1372399 in words is "one million, three hundred seventy-two thousand, three hundred ninety-nine".