3128079 has 4 divisors (see below), whose sum is σ = 4170776. Its totient is φ = 2085384.

The previous prime is 3128057. The next prime is 3128101. The reversal of 3128079 is 9708213.

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: 9708213 = 3 ⋅3236071.

It is an interprime number because it is at equal distance from previous prime (3128057) and next prime (3128101).

It is not a de Polignac number, because 3128079 - 2⁸ = 3127823 is a prime.

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 (3128009) 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, 521344 + ... + 521349.

It is an arithmetic number, because the mean of its divisors is an integer number (1042694).

Almost surely, 2^3128079 is an apocalyptic number.

3128079 is a deficient number, since it is larger than the sum of its proper divisors (1042697).

3128079 is a wasteful number, since it uses less digits than its factorization.

3128079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042696.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 3128079 is about 1768.6376112703. The cubic root of 3128079 is about 146.2488874194.

The spelling of 3128079 in words is "three million, one hundred twenty-eight thousand, seventy-nine".