3954581 has 4 divisors (see below), whose sum is σ = 4046592. Its totient is φ = 3862572.

The previous prime is 3954571. The next prime is 3954583. The reversal of 3954581 is 1854593.

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 3954581 - 2¹⁴ = 3938197 is a prime.

It is a super-2 number, since 2×3954581² = 31277421771122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45941 + ... + 46026.

It is an arithmetic number, because the mean of its divisors is an integer number (1011648).

Almost surely, 2^3954581 is an apocalyptic number.

It is an amenable number.

3954581 is a deficient number, since it is larger than the sum of its proper divisors (92011).

3954581 is an equidigital number, since it uses as much as digits as its factorization.

3954581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92010.

The product of its digits is 21600, while the sum is 35.

The square root of 3954581 is about 1988.6128331075. The cubic root of 3954581 is about 158.1369986260.

The spelling of 3954581 in words is "three million, nine hundred fifty-four thousand, five hundred eighty-one".