79089071 has 4 divisors (see below), whose sum is σ = 79148544. Its totient is φ = 79029600.

The previous prime is 79089053. The next prime is 79089079. The reversal of 79089071 is 17098097.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79089071 - 2⁶ = 79089007 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 (79089079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27695 + ... + 30416.

It is an arithmetic number, because the mean of its divisors is an integer number (19787136).

Almost surely, 2^79089071 is an apocalyptic number.

79089071 is a deficient number, since it is larger than the sum of its proper divisors (59473).

79089071 is a wasteful number, since it uses less digits than its factorization.

79089071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59472.

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 79089071 is about 8893.2036409834. The cubic root of 79089071 is about 429.2452435045.

The spelling of 79089071 in words is "seventy-nine million, eighty-nine thousand, seventy-one".