3158669 has 4 divisors (see below), whose sum is σ = 3162240. Its totient is φ = 3155100.

The previous prime is 3158633. The next prime is 3158671. The reversal of 3158669 is 9668513.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9668513 = 29 ⋅333397.

It is a cyclic number.

It is not a de Polignac number, because 3158669 - 2¹² = 3154573 is a prime.

It is a super-2 number, since 2×3158669² = 19954379703122, 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 (3158609) 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, 644 + ... + 2594.

It is an arithmetic number, because the mean of its divisors is an integer number (790560).

Almost surely, 2^3158669 is an apocalyptic number.

It is an amenable number.

3158669 is a deficient number, since it is larger than the sum of its proper divisors (3571).

3158669 is a wasteful number, since it uses less digits than its factorization.

3158669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570.

The product of its digits is 38880, while the sum is 38.

The square root of 3158669 is about 1777.2644710341. The cubic root of 3158669 is about 146.7240724548.

The spelling of 3158669 in words is "three million, one hundred fifty-eight thousand, six hundred sixty-nine".