4198979 has 4 divisors (see below), whose sum is σ = 4215960. Its totient is φ = 4182000.

The previous prime is 4198973. The next prime is 4199003. The reversal of 4198979 is 9798914.

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 4198979 - 2⁴ = 4198963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4198973) 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, 8114 + ... + 8615.

It is an arithmetic number, because the mean of its divisors is an integer number (1053990).

Almost surely, 2^4198979 is an apocalyptic number.

4198979 is a deficient number, since it is larger than the sum of its proper divisors (16981).

4198979 is a wasteful number, since it uses less digits than its factorization.

4198979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16980.

The product of its digits is 163296, while the sum is 47.

The square root of 4198979 is about 2049.1410395578. The cubic root of 4198979 is about 161.3297896489.

The spelling of 4198979 in words is "four million, one hundred ninety-eight thousand, nine hundred seventy-nine".