3879729 has 12 divisors (see below), whose sum is σ = 6404736. Its totient is φ = 2216952.

The previous prime is 3879727. The next prime is 3879737. The reversal of 3879729 is 9279783.

It is not a de Polignac number, because 3879729 - 2¹ = 3879727 is a prime.

It is a super-2 number, since 2×3879729² = 30104594226882, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3879721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30729 + ... + 30854.

It is an arithmetic number, because the mean of its divisors is an integer number (533728).

Almost surely, 2^3879729 is an apocalyptic number.

It is an amenable number.

3879729 is a deficient number, since it is larger than the sum of its proper divisors (2525007).

3879729 is a wasteful number, since it uses less digits than its factorization.

3879729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61596 (or 61593 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 3879729 is about 1969.7027694553. The cubic root of 3879729 is about 157.1329016519.

The spelling of 3879729 in words is "three million, eight hundred seventy-nine thousand, seven hundred twenty-nine".