123947377 has 4 divisors (see below), whose sum is σ = 126048240. Its totient is φ = 121846516.

The previous prime is 123947333. The next prime is 123947401. The reversal of 123947377 is 773749321.

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 a cyclic number.

It is not a de Polignac number, because 123947377 - 2⁷ = 123947249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123947177) 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, 1050343 + ... + 1050460.

It is an arithmetic number, because the mean of its divisors is an integer number (31512060).

Almost surely, 2^123947377 is an apocalyptic number.

It is an amenable number.

123947377 is a deficient number, since it is larger than the sum of its proper divisors (2100863).

123947377 is an equidigital number, since it uses as much as digits as its factorization.

123947377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100862.

The product of its digits is 222264, while the sum is 43.

The square root of 123947377 is about 11133.1656324695. The cubic root of 123947377 is about 498.5925445223.

The spelling of 123947377 in words is "one hundred twenty-three million, nine hundred forty-seven thousand, three hundred seventy-seven".