123685077 has 4 divisors (see below), whose sum is σ = 164913440. Its totient is φ = 82456716.

The previous prime is 123685073. The next prime is 123685097. The reversal of 123685077 is 770586321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 123685077 - 2² = 123685073 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 (123685073) 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, 20614177 + ... + 20614182.

It is an arithmetic number, because the mean of its divisors is an integer number (41228360).

Almost surely, 2^123685077 is an apocalyptic number.

It is an amenable number.

123685077 is a deficient number, since it is larger than the sum of its proper divisors (41228363).

123685077 is an equidigital number, since it uses as much as digits as its factorization.

123685077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41228362.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 123685077 is about 11121.3792759711. The cubic root of 123685077 is about 498.2405855165.

The spelling of 123685077 in words is "one hundred twenty-three million, six hundred eighty-five thousand, seventy-seven".