3879951 has 4 divisors (see below), whose sum is σ = 5173272. Its totient is φ = 2586632.

The previous prime is 3879943. The next prime is 3879959. The reversal of 3879951 is 1599783.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1599783 = 3 ⋅533261.

It is an interprime number because it is at equal distance from previous prime (3879943) and next prime (3879959).

It is a cyclic number.

It is not a de Polignac number, because 3879951 - 2³ = 3879943 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3879959) 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, 646656 + ... + 646661.

It is an arithmetic number, because the mean of its divisors is an integer number (1293318).

Almost surely, 2^3879951 is an apocalyptic number.

3879951 is a deficient number, since it is larger than the sum of its proper divisors (1293321).

3879951 is a wasteful number, since it uses less digits than its factorization.

3879951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293320.

The product of its digits is 68040, while the sum is 42.

The square root of 3879951 is about 1969.7591223294. The cubic root of 3879951 is about 157.1358986687.

The spelling of 3879951 in words is "three million, eight hundred seventy-nine thousand, nine hundred fifty-one".