3557401 has 8 divisors (see below), whose sum is σ = 3702600. Its totient is φ = 3413760.

The previous prime is 3557381. The next prime is 3557431. The reversal of 3557401 is 1047553.

It can be written as a sum of positive squares in 4 ways, for example, as 1498176 + 2059225 = 1224^2 + 1435^2 .

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 3557401 - 2⁷ = 3557273 is a prime.

It is a Duffinian number.

3557401 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3557431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6735 + ... + 7243.

It is an arithmetic number, because the mean of its divisors is an integer number (462825).

Almost surely, 2^3557401 is an apocalyptic number.

It is an amenable number.

3557401 is a deficient number, since it is larger than the sum of its proper divisors (145199).

3557401 is a wasteful number, since it uses less digits than its factorization.

3557401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 3557401 is about 1886.1073670393. The cubic root of 3557401 is about 152.6549674383.

The spelling of 3557401 in words is "three million, five hundred fifty-seven thousand, four hundred one".