4123978 has 8 divisors (see below), whose sum is σ = 6197472. Its totient is φ = 2058156.

The previous prime is 4123967. The next prime is 4123997. The reversal of 4123978 is 8793214.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300 + ... + 2887.

It is an arithmetic number, because the mean of its divisors is an integer number (774684).

Almost surely, 2^4123978 is an apocalyptic number.

4123978 is a deficient number, since it is larger than the sum of its proper divisors (2073494).

4123978 is a wasteful number, since it uses less digits than its factorization.

4123978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836.

The product of its digits is 12096, while the sum is 34.

The square root of 4123978 is about 2030.7579865656. The cubic root of 4123978 is about 160.3634705570.

The spelling of 4123978 in words is "four million, one hundred twenty-three thousand, nine hundred seventy-eight".