3689229 has 4 divisors (see below), whose sum is σ = 4918976. Its totient is φ = 2459484.

The previous prime is 3689209. The next prime is 3689237. The reversal of 3689229 is 9229863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9229863 = 3 ⋅3076621.

It is not a de Polignac number, because 3689229 - 2¹² = 3685133 is a prime.

It is a super-2 number, since 2×3689229² = 27220821228882, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3689209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614869 + ... + 614874.

It is an arithmetic number, because the mean of its divisors is an integer number (1229744).

Almost surely, 2^3689229 is an apocalyptic number.

It is an amenable number.

3689229 is a deficient number, since it is larger than the sum of its proper divisors (1229747).

3689229 is a wasteful number, since it uses less digits than its factorization.

3689229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229746.

The product of its digits is 46656, while the sum is 39.

The square root of 3689229 is about 1920.7365774619. The cubic root of 3689229 is about 154.5178077734.

The spelling of 3689229 in words is "three million, six hundred eighty-nine thousand, two hundred twenty-nine".