3521998 has 8 divisors (see below), whose sum is σ = 5290992. Its totient is φ = 1758336.

The previous prime is 3521977. The next prime is 3522007. The reversal of 3521998 is 8991253.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1711 + ... + 3157.

It is an arithmetic number, because the mean of its divisors is an integer number (661374).

Almost surely, 2^3521998 is an apocalyptic number.

3521998 is a deficient number, since it is larger than the sum of its proper divisors (1768994).

3521998 is a wasteful number, since it uses less digits than its factorization.

3521998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666.

The product of its digits is 19440, while the sum is 37.

The square root of 3521998 is about 1876.6986971808. The cubic root of 3521998 is about 152.1468744223.

The spelling of 3521998 in words is "three million, five hundred twenty-one thousand, nine hundred ninety-eight".