3521918 has 4 divisors (see below), whose sum is σ = 5282880. Its totient is φ = 1760958.

The previous prime is 3521909. The next prime is 3521923. The reversal of 3521918 is 8191253.

It is a semiprime because it is the product of two primes.

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, 880478 + ... + 880481.

It is an arithmetic number, because the mean of its divisors is an integer number (1320720).

Almost surely, 2^3521918 is an apocalyptic number.

3521918 is a deficient number, since it is larger than the sum of its proper divisors (1760962).

3521918 is a wasteful number, since it uses less digits than its factorization.

3521918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760961.

The product of its digits is 2160, while the sum is 29.

The square root of 3521918 is about 1876.6773830363. The cubic root of 3521918 is about 152.1457224396.

The spelling of 3521918 in words is "three million, five hundred twenty-one thousand, nine hundred eighteen".