3546521 has 16 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 2998800.

The previous prime is 3546509. The next prime is 3546539. The reversal of 3546521 is 1256453.

It is a cyclic number.

It is not a de Polignac number, because 3546521 - 2⁶ = 3546457 is a prime.

It is a super-2 number, since 2×3546521² = 25155622406882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3546551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14720 + ... + 14958.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 2^3546521 is an apocalyptic number.

It is an amenable number.

3546521 is a deficient number, since it is larger than the sum of its proper divisors (600679).

3546521 is a wasteful number, since it uses less digits than its factorization.

3546521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its digits is 3600, while the sum is 26.

The square root of 3546521 is about 1883.2209110989. The cubic root of 3546521 is about 152.4991812193.

The spelling of 3546521 in words is "three million, five hundred forty-six thousand, five hundred twenty-one".