3954849 has 4 divisors (see below), whose sum is σ = 5273136. Its totient is φ = 2636564.

The previous prime is 3954833. The next prime is 3954851. The reversal of 3954849 is 9484593.

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 3954849 - 2⁴ = 3954833 is a prime.

It is a super-2 number, since 2×3954849² = 31281661225602, which contains 22 as substring.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 3954849.

It is not an unprimeable number, because it can be changed into a prime (3954859) 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, 659139 + ... + 659144.

It is an arithmetic number, because the mean of its divisors is an integer number (1318284).

Almost surely, 2^3954849 is an apocalyptic number.

It is an amenable number.

3954849 is a deficient number, since it is larger than the sum of its proper divisors (1318287).

3954849 is a wasteful number, since it uses less digits than its factorization.

3954849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318286.

The product of its digits is 155520, while the sum is 42.

The square root of 3954849 is about 1988.6802156204. The cubic root of 3954849 is about 158.1405708341.

The spelling of 3954849 in words is "three million, nine hundred fifty-four thousand, eight hundred forty-nine".