79001889 has 4 divisors (see below), whose sum is σ = 105335856. Its totient is φ = 52667924.

The previous prime is 79001863. The next prime is 79001891. The reversal of 79001889 is 98810097.

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.

It is a cyclic number.

It is not a de Polignac number, because 79001889 - 2⁸ = 79001633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79001889.

It is not an unprimeable number, because it can be changed into a prime (79001189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13166979 + ... + 13166984.

It is an arithmetic number, because the mean of its divisors is an integer number (26333964).

Almost surely, 2^79001889 is an apocalyptic number.

It is an amenable number.

79001889 is a deficient number, since it is larger than the sum of its proper divisors (26333967).

79001889 is a wasteful number, since it uses less digits than its factorization.

79001889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26333966.

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 79001889 is about 8888.3006812326. The cubic root of 79001889 is about 429.0874626743.

The spelling of 79001889 in words is "seventy-nine million, one thousand, eight hundred eighty-nine".