123477399 has 16 divisors (see below), whose sum is σ = 187875040. Its totient is φ = 80092800.

The previous prime is 123477377. The next prime is 123477407. The reversal of 123477399 is 993774321.

It is not a de Polignac number, because 123477399 - 2⁹ = 123476887 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 (123477499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60802 + ... + 62799.

It is an arithmetic number, because the mean of its divisors is an integer number (11742190).

Almost surely, 2^123477399 is an apocalyptic number.

123477399 is a deficient number, since it is larger than the sum of its proper divisors (64397641).

123477399 is a wasteful number, since it uses less digits than its factorization.

123477399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123647 (or 123641 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 123477399 is about 11112.0384718556. The cubic root of 123477399 is about 497.9615662021.

The spelling of 123477399 in words is "one hundred twenty-three million, four hundred seventy-seven thousand, three hundred ninety-nine".