3979347 has 4 divisors (see below), whose sum is σ = 5305800.
Its totient is φ = 2652896.
The previous prime is 3979289. The next prime is 3979357. The reversal of 3979347 is 7439793.
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 3979347 - 27 = 3979219 is a prime.
It is a D-number.
It is a junction number, because it is equal to n+sod(n) for n = 3979299 and 3979308.
It is not an unprimeable number, because it can be changed into a prime (3979357) 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, 663222 + ... + 663227.
It is an arithmetic number, because the mean of its divisors is an integer number (1326450).
Almost surely, 23979347 is an apocalyptic number.
3979347 is a deficient number, since it is larger than the sum of its proper divisors (1326453).
3979347 is a wasteful number, since it uses less digits than its factorization.
3979347 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1326452.
The product of its digits is 142884, while the sum is 42.
The square root of 3979347 is about 1994.8300679507.
The cubic root of 3979347 is about 158.4664286855.
The spelling of 3979347 in words is "three million, nine hundred seventy-nine thousand, three hundred forty-seven".