3509862 has 16 divisors (see below), whose sum is σ = 7125312. Its totient is φ = 1152360.

The previous prime is 3509861. The next prime is 3509873. The reversal of 3509862 is 2689053.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3509861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3964 + ... + 4767.

It is an arithmetic number, because the mean of its divisors is an integer number (445332).

Almost surely, 2^3509862 is an apocalyptic number.

3509862 is an abundant number, since it is smaller than the sum of its proper divisors (3615450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3509862 is a wasteful number, since it uses less digits than its factorization.

3509862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8803.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 3509862 is about 1873.4625696821. The cubic root of 3509862 is about 151.9719188660.

It can be divided in two parts, 3509 and 862, that added together give a triangular number (4371 = T₉₃).

The spelling of 3509862 in words is "three million, five hundred nine thousand, eight hundred sixty-two".