123877992 has 64 divisors (see below), whose sum is σ = 354816000. Its totient is φ = 35305920.

The previous prime is 123877991. The next prime is 123878011. The reversal of 123877992 is 299778321.

It is not an unprimeable number, because it can be changed into a prime (123877991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100017 + ... + 101247.

It is an arithmetic number, because the mean of its divisors is an integer number (5544000).

Almost surely, 2^123877992 is an apocalyptic number.

123877992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123877992 is an abundant number, since it is smaller than the sum of its proper divisors (230938008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123877992 is a wasteful number, since it uses less digits than its factorization.

123877992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846 (or 1842 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 123877992 is about 11130.0490564957. The cubic root of 123877992 is about 498.4994907821.

The spelling of 123877992 in words is "one hundred twenty-three million, eight hundred seventy-seven thousand, nine hundred ninety-two".