3979651 has 8 divisors (see below), whose sum is σ = 4327344. Its totient is φ = 3637920.

The previous prime is 3979643. The next prime is 3979663. The reversal of 3979651 is 1569793.

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

It is not a de Polignac number, because 3979651 - 2³ = 3979643 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40 + ... + 2821.

It is an arithmetic number, because the mean of its divisors is an integer number (540918).

Almost surely, 2^3979651 is an apocalyptic number.

3979651 is a deficient number, since it is larger than the sum of its proper divisors (347693).

3979651 is a wasteful number, since it uses less digits than its factorization.

3979651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981.

The product of its digits is 51030, while the sum is 40.

The square root of 3979651 is about 1994.9062634620. The cubic root of 3979651 is about 158.4704639010.

The spelling of 3979651 in words is "three million, nine hundred seventy-nine thousand, six hundred fifty-one".