1204623 has 12 divisors (see below), whose sum is σ = 1988688. Its totient is φ = 688320.

The previous prime is 1204613. The next prime is 1204633. The reversal of 1204623 is 3264021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1204613) and next prime (1204633).

It is not a de Polignac number, because 1204623 - 2⁴ = 1204607 is a prime.

It is a super-2 number, since 2×1204623² = 2902233144258, which contains 22 as substring.

1204623 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1204596 and 1204605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204613) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9498 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (165724).

2^1204623 is an apocalyptic number.

1204623 is a deficient number, since it is larger than the sum of its proper divisors (784065).

1204623 is a wasteful number, since it uses less digits than its factorization.

1204623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19134 (or 19131 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1204623 is about 1097.5531877772. The cubic root of 1204623 is about 106.4021451223.

Adding to 1204623 its reverse (3264021), we get a palindrome (4468644).

The spelling of 1204623 in words is "one million, two hundred four thousand, six hundred twenty-three".