78989102 has 8 divisors (see below), whose sum is σ = 119815200. Its totient is φ = 39050704.

The previous prime is 78989101. The next prime is 78989111. The reversal of 78989102 is 20198987.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78989101) 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, 221702 + ... + 222057.

It is an arithmetic number, because the mean of its divisors is an integer number (14976900).

Almost surely, 2^78989102 is an apocalyptic number.

78989102 is a deficient number, since it is larger than the sum of its proper divisors (40826098).

78989102 is a wasteful number, since it uses less digits than its factorization.

78989102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443850.

The product of its (nonzero) digits is 72576, while the sum is 44.

The square root of 78989102 is about 8887.5813357741. The cubic root of 78989102 is about 429.0643111712.

The spelling of 78989102 in words is "seventy-eight million, nine hundred eighty-nine thousand, one hundred two".