3734209 has 8 divisors (see below), whose sum is σ = 3813768. Its totient is φ = 3655680.

The previous prime is 3734191. The next prime is 3734219. The reversal of 3734209 is 9024373.

It can be written as a sum of positive squares in 4 ways, for example, as 861184 + 2873025 = 928^2 + 1695^2 .

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 3734209 - 2¹¹ = 3732161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3734219) 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, 13149 + ... + 13429.

It is an arithmetic number, because the mean of its divisors is an integer number (476721).

Almost surely, 2^3734209 is an apocalyptic number.

It is an amenable number.

3734209 is a deficient number, since it is larger than the sum of its proper divisors (79559).

3734209 is a wasteful number, since it uses less digits than its factorization.

3734209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 3734209 is about 1932.4101531507. The cubic root of 3734209 is about 155.1432460011.

Adding to 3734209 its product of nonzero digits (4536), we get a triangular number (3738745 = T₂₇₃₄).

The spelling of 3734209 in words is "three million, seven hundred thirty-four thousand, two hundred nine".