123903816 has 32 divisors (see below), whose sum is σ = 310500960. Its totient is φ = 41202432.

The previous prime is 123903809. The next prime is 123903827. The reversal of 123903816 is 618309321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4431 + ... + 16353.

It is an arithmetic number, because the mean of its divisors is an integer number (9703155).

Almost surely, 2^123903816 is an apocalyptic number.

It is an amenable number.

123903816 is an abundant number, since it is smaller than the sum of its proper divisors (186597144).

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

123903816 is a wasteful number, since it uses less digits than its factorization.

123903816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12365 (or 12361 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 123903816 is about 11131.2090987457. The cubic root of 123903816 is about 498.5341279715.

The spelling of 123903816 in words is "one hundred twenty-three million, nine hundred three thousand, eight hundred sixteen".