3509901 has 6 divisors (see below), whose sum is σ = 5069870. Its totient is φ = 2339928.

The previous prime is 3509881. The next prime is 3509903. The reversal of 3509901 is 1099053.

It can be written as a sum of positive squares in only one way, i.e., 1822500 + 1687401 = 1350^2 + 1299^2 .

It is not a de Polignac number, because 3509901 - 2⁷ = 3509773 is a prime.

It is a Duffinian number.

3509901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3509903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194986 + ... + 195003.

Almost surely, 2^3509901 is an apocalyptic number.

It is an amenable number.

3509901 is a deficient number, since it is larger than the sum of its proper divisors (1559969).

3509901 is a wasteful number, since it uses less digits than its factorization.

3509901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389995 (or 389992 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 3509901 is about 1873.4729781878. The cubic root of 3509901 is about 151.9724817450.

The spelling of 3509901 in words is "three million, five hundred nine thousand, nine hundred one".