1072403 has 4 divisors (see below), whose sum is σ = 1074480. Its totient is φ = 1070328.

The previous prime is 1072397. The next prime is 1072429. The reversal of 1072403 is 3042701.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1072403 - 2⁴ = 1072387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072433) 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, 413 + ... + 1521.

It is an arithmetic number, because the mean of its divisors is an integer number (268620).

2^1072403 is an apocalyptic number.

1072403 is a deficient number, since it is larger than the sum of its proper divisors (2077).

1072403 is an equidigital number, since it uses as much as digits as its factorization.

1072403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 1072403 is about 1035.5689257601. The cubic root of 1072403 is about 102.3574222299.

The spelling of 1072403 in words is "one million, seventy-two thousand, four hundred three".