3969759 has 4 divisors (see below), whose sum is σ = 5293016. Its totient is φ = 2646504.

The previous prime is 3969751. The next prime is 3969769. The reversal of 3969759 is 9579693.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3969759 - 2³ = 3969751 is a prime.

It is a D-number.

It is a Duffinian number.

3969759 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969751) 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, 661624 + ... + 661629.

It is an arithmetic number, because the mean of its divisors is an integer number (1323254).

Almost surely, 2^3969759 is an apocalyptic number.

3969759 is a deficient number, since it is larger than the sum of its proper divisors (1323257).

3969759 is a wasteful number, since it uses less digits than its factorization.

3969759 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323256.

The product of its digits is 459270, while the sum is 48.

The square root of 3969759 is about 1992.4254063829. The cubic root of 3969759 is about 158.3390545178.

The spelling of 3969759 in words is "three million, nine hundred sixty-nine thousand, seven hundred fifty-nine".