3609669 has 8 divisors (see below), whose sum is σ = 5500480. Its totient is φ = 2062656.

The previous prime is 3609649. The next prime is 3609673. The reversal of 3609669 is 9669063.

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

It is not a de Polignac number, because 3609669 - 2⁵ = 3609637 is a prime.

It is a super-2 number, since 2×3609669² = 26059420579122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3609629) 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, 85924 + ... + 85965.

It is an arithmetic number, because the mean of its divisors is an integer number (687560).

Almost surely, 2^3609669 is an apocalyptic number.

It is an amenable number.

3609669 is a deficient number, since it is larger than the sum of its proper divisors (1890811).

3609669 is a wasteful number, since it uses less digits than its factorization.

3609669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171899.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 3609669 is about 1899.9128927401. The cubic root of 3609669 is about 153.3989757800.

It can be divided in two parts, 3609 and 669, that added together give a triangular number (4278 = T₉₂).

The spelling of 3609669 in words is "three million, six hundred nine thousand, six hundred sixty-nine".