3699445 has 8 divisors (see below), whose sum is σ = 4559544. Its totient is φ = 2879424.

The previous prime is 3699439. The next prime is 3699457. The reversal of 3699445 is 5449963.

It can be written as a sum of positive squares in 4 ways, for example, as 1745041 + 1954404 = 1321^2 + 1398^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3699445 - 2⁵ = 3699413 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3699398 and 3699407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9814 + ... + 10183.

It is an arithmetic number, because the mean of its divisors is an integer number (569943).

Almost surely, 2^3699445 is an apocalyptic number.

It is an amenable number.

3699445 is a deficient number, since it is larger than the sum of its proper divisors (860099).

3699445 is a wasteful number, since it uses less digits than its factorization.

3699445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20039.

The product of its digits is 116640, while the sum is 40.

The square root of 3699445 is about 1923.3941353763. The cubic root of 3699445 is about 154.6603035886.

The spelling of 3699445 in words is "three million, six hundred ninety-nine thousand, four hundred forty-five".