1263673 has 4 divisors (see below), whose sum is σ = 1268608. Its totient is φ = 1258740.

The previous prime is 1263667. The next prime is 1263677. The reversal of 1263673 is 3763621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1263673 - 2¹⁷ = 1132601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1263677) 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, 2061 + ... + 2602.

It is an arithmetic number, because the mean of its divisors is an integer number (317152).

2^1263673 is an apocalyptic number.

It is an amenable number.

1263673 is a deficient number, since it is larger than the sum of its proper divisors (4935).

1263673 is an equidigital number, since it uses as much as digits as its factorization.

1263673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934.

The product of its digits is 4536, while the sum is 28.

The square root of 1263673 is about 1124.1321096739. The cubic root of 1263673 is about 108.1130788643.

It can be divided in two parts, 1263 and 673, that added together give a square (1936 = 44²).

The spelling of 1263673 in words is "one million, two hundred sixty-three thousand, six hundred seventy-three".