3954409 has 8 divisors (see below), whose sum is σ = 4146912. Its totient is φ = 3766560.

The previous prime is 3954397. The next prime is 3954437. The reversal of 3954409 is 9044593.

3954409 = 282² + 283² + ... + 324².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3954409 - 2⁷ = 3954281 is a prime.

It is a Duffinian number.

3954409 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3954499) 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 7 ways as a sum of consecutive naturals, for example, 642 + ... + 2884.

It is an arithmetic number, because the mean of its divisors is an integer number (518364).

Almost surely, 2^3954409 is an apocalyptic number.

It is an amenable number.

3954409 is a deficient number, since it is larger than the sum of its proper divisors (192503).

3954409 is a wasteful number, since it uses less digits than its factorization.

3954409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 3954409 is about 1988.5695864113. The cubic root of 3954409 is about 158.1347059299.

The spelling of 3954409 in words is "three million, nine hundred fifty-four thousand, four hundred nine".