4201979 has 4 divisors (see below), whose sum is σ = 4315584. Its totient is φ = 4088376.

The previous prime is 4201969. The next prime is 4202017. The reversal of 4201979 is 9791024.

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 4201979 - 2⁴ = 4201963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4201969) 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, 56747 + ... + 56820.

It is an arithmetic number, because the mean of its divisors is an integer number (1078896).

Almost surely, 2^4201979 is an apocalyptic number.

4201979 is a deficient number, since it is larger than the sum of its proper divisors (113605).

4201979 is a wasteful number, since it uses less digits than its factorization.

4201979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113604.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 4201979 is about 2049.8729228906. The cubic root of 4201979 is about 161.3682016971.

The spelling of 4201979 in words is "four million, two hundred one thousand, nine hundred seventy-nine".