623677 has 2 divisors, whose sum is σ = 623678. Its totient is φ = 623676.

The previous prime is 623671. The next prime is 623681. The reversal of 623677 is 776326.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 622521 + 1156 = 789^2 + 34^2 .

It is a cyclic number.

It is not a de Polignac number, because 623677 - 2³ = 623669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (623671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311838 + 311839.

It is an arithmetic number, because the mean of its divisors is an integer number (311839).

2⁶²³⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

623677 is a deficient number, since it is larger than the sum of its proper divisors (1).

623677 is an equidigital number, since it uses as much as digits as its factorization.

623677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 31.

The square root of 623677 is about 789.7322331018. The cubic root of 623677 is about 85.4384267649.

The spelling of 623677 in words is "six hundred twenty-three thousand, six hundred seventy-seven".