123487378 has 16 divisors (see below), whose sum is σ = 211973760. Its totient is φ = 52852896.

The previous prime is 123487369. The next prime is 123487379. The reversal of 123487378 is 873784321.

It is not an unprimeable number, because it can be changed into a prime (123487379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5875 + ... + 16777.

It is an arithmetic number, because the mean of its divisors is an integer number (13248360).

Almost surely, 2^123487378 is an apocalyptic number.

123487378 is a deficient number, since it is larger than the sum of its proper divisors (88486382).

123487378 is a wasteful number, since it uses less digits than its factorization.

123487378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721.

The product of its digits is 225792, while the sum is 43.

The square root of 123487378 is about 11112.4874803079. The cubic root of 123487378 is about 497.9749803293.

The spelling of 123487378 in words is "one hundred twenty-three million, four hundred eighty-seven thousand, three hundred seventy-eight".