4398078427 has 4 divisors (see below), whose sum is σ = 4400357976. Its totient is φ = 4395798880.

The previous prime is 4398078401. The next prime is 4398078463. The reversal of 4398078427 is 7248708934.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4398078427 - 2⁷ = 4398078299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4398078527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1136878 + ... + 1140739.

It is an arithmetic number, because the mean of its divisors is an integer number (1100089494).

Almost surely, 2^4398078427 is an apocalyptic number.

4398078427 is a deficient number, since it is larger than the sum of its proper divisors (2279549).

4398078427 is a wasteful number, since it uses less digits than its factorization.

4398078427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279548.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The square root of 4398078427 is about 66318.0098238782. The cubic root of 4398078427 is about 1638.4039631897.

The spelling of 4398078427 in words is "four billion, three hundred ninety-eight million, seventy-eight thousand, four hundred twenty-seven".