3899739 has 8 divisors (see below), whose sum is σ = 5239872. Its totient is φ = 2579720.

The previous prime is 3899737. The next prime is 3899747. The reversal of 3899739 is 9379983.

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

It is a cyclic number.

It is not a de Polignac number, because 3899739 - 2¹ = 3899737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3899737) 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, 4569 + ... + 5354.

It is an arithmetic number, because the mean of its divisors is an integer number (654984).

Almost surely, 2^3899739 is an apocalyptic number.

3899739 is a deficient number, since it is larger than the sum of its proper divisors (1340133).

3899739 is a wasteful number, since it uses less digits than its factorization.

3899739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057.

The product of its digits is 367416, while the sum is 48.

The square root of 3899739 is about 1974.7756834638. The cubic root of 3899739 is about 157.4025802182.

The spelling of 3899739 in words is "three million, eight hundred ninety-nine thousand, seven hundred thirty-nine".