102789079 has 8 divisors (see below), whose sum is σ = 106745760. Its totient is φ = 98859936.

The previous prime is 102789077. The next prime is 102789083. The reversal of 102789079 is 970987201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102789079 - 2¹ = 102789077 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 (102789073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 889 + ... + 14365.

It is an arithmetic number, because the mean of its divisors is an integer number (13343220).

Almost surely, 2^102789079 is an apocalyptic number.

102789079 is a deficient number, since it is larger than the sum of its proper divisors (3956681).

102789079 is a wasteful number, since it uses less digits than its factorization.

102789079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13769.

The product of its (nonzero) digits is 63504, while the sum is 43.

The square root of 102789079 is about 10138.4949080226. The cubic root of 102789079 is about 468.4346277129.

The spelling of 102789079 in words is "one hundred two million, seven hundred eighty-nine thousand, seventy-nine".