3158789 has 4 divisors (see below), whose sum is σ = 3164556. Its totient is φ = 3153024.

The previous prime is 3158761. The next prime is 3158791. The reversal of 3158789 is 9878513.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9878513 = 17 ⋅581089.

It can be written as a sum of positive squares in 2 ways, for example, as 693889 + 2464900 = 833^2 + 1570^2 .

It is a cyclic number.

It is not a de Polignac number, because 3158789 - 2¹² = 3154693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3158759) 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, 1964 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (791139).

Almost surely, 2^3158789 is an apocalyptic number.

It is an amenable number.

3158789 is a deficient number, since it is larger than the sum of its proper divisors (5767).

3158789 is an equidigital number, since it uses as much as digits as its factorization.

3158789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766.

The product of its digits is 60480, while the sum is 41.

The square root of 3158789 is about 1777.2982304611. The cubic root of 3158789 is about 146.7259304806.

The spelling of 3158789 in words is "three million, one hundred fifty-eight thousand, seven hundred eighty-nine".