3495921 has 32 divisors (see below), whose sum is σ = 5685120. Its totient is φ = 1881600.

The previous prime is 3495917. The next prime is 3495941. The reversal of 3495921 is 1295943.

It is not a de Polignac number, because 3495921 - 2² = 3495917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

3495921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3495911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12301 + ... + 12581.

It is an arithmetic number, because the mean of its divisors is an integer number (177660).

Almost surely, 2^3495921 is an apocalyptic number.

It is an amenable number.

3495921 is a deficient number, since it is larger than the sum of its proper divisors (2189199).

3495921 is a wasteful number, since it uses less digits than its factorization.

3495921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337.

The product of its digits is 9720, while the sum is 33.

The square root of 3495921 is about 1869.7382169705. The cubic root of 3495921 is about 151.7704435400.

It can be divided in two parts, 34959 and 21, that added together give a triangular number (34980 = T₂₆₄).

The spelling of 3495921 in words is "three million, four hundred ninety-five thousand, nine hundred twenty-one".