1045623 has 8 divisors (see below), whose sum is σ = 1428336. Its totient is φ = 680000.

The previous prime is 1045621. The next prime is 1045633. The reversal of 1045623 is 3265401.

It is a happy number.

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 1045623 - 2¹ = 1045621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1045623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4128 + ... + 4373.

It is an arithmetic number, because the mean of its divisors is an integer number (178542).

2^1045623 is an apocalyptic number.

1045623 is a deficient number, since it is larger than the sum of its proper divisors (382713).

1045623 is an equidigital number, since it uses as much as digits as its factorization.

1045623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8545.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1045623 is about 1022.5570888708. The cubic root of 1045623 is about 101.4982082886.

The spelling of 1045623 in words is "one million, forty-five thousand, six hundred twenty-three".