3521894 has 4 divisors (see below), whose sum is σ = 5282844. Its totient is φ = 1760946.

The previous prime is 3521867. The next prime is 3521909. The reversal of 3521894 is 4981253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4981253 = 647 ⋅7699.

It is a self number, because there is not a number n which added to its sum of digits gives 3521894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 880472 + ... + 880475.

It is an arithmetic number, because the mean of its divisors is an integer number (1320711).

Almost surely, 2^3521894 is an apocalyptic number.

3521894 is a deficient number, since it is larger than the sum of its proper divisors (1760950).

3521894 is a wasteful number, since it uses less digits than its factorization.

3521894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760949.

The product of its digits is 8640, while the sum is 32.

The square root of 3521894 is about 1876.6709887458. The cubic root of 3521894 is about 152.1453768414.

The spelling of 3521894 in words is "three million, five hundred twenty-one thousand, eight hundred ninety-four".