1273623 has 24 divisors (see below), whose sum is σ = 1959888. Its totient is φ = 731136.

The previous prime is 1273609. The next prime is 1273637. The reversal of 1273623 is 3263721.

It is an interprime number because it is at equal distance from previous prime (1273609) and next prime (1273637).

It is not a de Polignac number, because 1273623 - 2⁸ = 1273367 is a prime.

It is a super-2 number, since 2×1273623² = 3244231092258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1273593 and 1273602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273663) 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 23 ways as a sum of consecutive naturals, for example, 11215 + ... + 11327.

It is an arithmetic number, because the mean of its divisors is an integer number (81662).

2^1273623 is an apocalyptic number.

1273623 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1273623 is a deficient number, since it is larger than the sum of its proper divisors (686265).

1273623 is a wasteful number, since it uses less digits than its factorization.

1273623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 146 counting only the distinct ones).

The product of its digits is 1512, while the sum is 24.

The square root of 1273623 is about 1128.5490684946. The cubic root of 1273623 is about 108.3960935489.

The spelling of 1273623 in words is "one million, two hundred seventy-three thousand, six hundred twenty-three".