623607 has 4 divisors (see below), whose sum is σ = 831480. Its totient is φ = 415736.

The previous prime is 623591. The next prime is 623617. The reversal of 623607 is 706326.

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 623607 - 2⁴ = 623591 is a prime.

It is a D-number.

623607 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623617) 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, 103932 + ... + 103937.

It is an arithmetic number, because the mean of its divisors is an integer number (207870).

2⁶²³⁶⁰⁷ is an apocalyptic number.

623607 is a deficient number, since it is larger than the sum of its proper divisors (207873).

623607 is a wasteful number, since it uses less digits than its factorization.

623607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207872.

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

The square root of 623607 is about 789.6879130391. The cubic root of 623607 is about 85.4352301778.

The spelling of 623607 in words is "six hundred twenty-three thousand, six hundred seven".