3949597 has 4 divisors (see below), whose sum is σ = 4085820. Its totient is φ = 3813376.

The previous prime is 3949579. The next prime is 3949609. The reversal of 3949597 is 7959493.

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

It can be written as a sum of positive squares in 2 ways, for example, as 942841 + 3006756 = 971^2 + 1734^2 .

It is a cyclic number.

It is not a de Polignac number, because 3949597 - 2⁷ = 3949469 is a prime.

It is a Duffinian number.

3949597 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949097) 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, 68068 + ... + 68125.

It is an arithmetic number, because the mean of its divisors is an integer number (1021455).

Almost surely, 2^3949597 is an apocalyptic number.

It is an amenable number.

3949597 is a deficient number, since it is larger than the sum of its proper divisors (136223).

3949597 is a wasteful number, since it uses less digits than its factorization.

3949597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136222.

The product of its digits is 306180, while the sum is 46.

The square root of 3949597 is about 1987.3593031961. The cubic root of 3949597 is about 158.0705367902.

The spelling of 3949597 in words is "three million, nine hundred forty-nine thousand, five hundred ninety-seven".