123605677 has 4 divisors (see below), whose sum is σ = 133113820. Its totient is φ = 114097536.

The previous prime is 123605663. The next prime is 123605683. The reversal of 123605677 is 776506321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16048036 + 107557641 = 4006^2 + 10371^2 .

It is a cyclic number.

It is not a de Polignac number, because 123605677 - 2⁷ = 123605549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123605617) 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, 4754052 + ... + 4754077.

It is an arithmetic number, because the mean of its divisors is an integer number (33278455).

Almost surely, 2^123605677 is an apocalyptic number.

It is an amenable number.

123605677 is a deficient number, since it is larger than the sum of its proper divisors (9508143).

123605677 is an equidigital number, since it uses as much as digits as its factorization.

123605677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508142.

The product of its (nonzero) digits is 52920, while the sum is 37.

The square root of 123605677 is about 11117.8090017773. The cubic root of 123605677 is about 498.1339470231.

The spelling of 123605677 in words is "one hundred twenty-three million, six hundred five thousand, six hundred seventy-seven".