3949757 has 4 divisors (see below), whose sum is σ = 4514016. Its totient is φ = 3385500.

The previous prime is 3949733. The next prime is 3949793. The reversal of 3949757 is 7579493.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3949757 - 2⁸ = 3949501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949157) 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, 282119 + ... + 282132.

It is an arithmetic number, because the mean of its divisors is an integer number (1128504).

Almost surely, 2^3949757 is an apocalyptic number.

It is an amenable number.

3949757 is a deficient number, since it is larger than the sum of its proper divisors (564259).

3949757 is an equidigital number, since it uses as much as digits as its factorization.

3949757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564258.

The product of its digits is 238140, while the sum is 44.

The square root of 3949757 is about 1987.3995572104. The cubic root of 3949757 is about 158.0726712649.

The spelling of 3949757 in words is "three million, nine hundred forty-nine thousand, seven hundred fifty-seven".