623907 has 12 divisors (see below), whose sum is σ = 908544. Its totient is φ = 412560.

The previous prime is 623893. The next prime is 623923. The reversal of 623907 is 709326.

It is not a de Polignac number, because 623907 - 2¹² = 619811 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (623947) 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, 1438 + ... + 1820.

It is an arithmetic number, because the mean of its divisors is an integer number (75712).

2⁶²³⁹⁰⁷ is an apocalyptic number.

623907 is a deficient number, since it is larger than the sum of its proper divisors (284637).

623907 is a wasteful number, since it uses less digits than its factorization.

623907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 567 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 623907 is about 789.8778386561. The cubic root of 623907 is about 85.4489281532.

It can be divided in two parts, 62 and 3907, that added together give a square (3969 = 63²).

The spelling of 623907 in words is "six hundred twenty-three thousand, nine hundred seven".