78917010 has 32 divisors (see below), whose sum is σ = 195512832. Its totient is φ = 20365440.

The previous prime is 78916993. The next prime is 78917011. The reversal of 78917010 is 1071987.

It is not an unprimeable number, because it can be changed into a prime (78917011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41499 + ... + 43358.

It is an arithmetic number, because the mean of its divisors is an integer number (6109776).

Almost surely, 2^78917010 is an apocalyptic number.

78917010 is an abundant number, since it is smaller than the sum of its proper divisors (116595822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78917010 is a wasteful number, since it uses less digits than its factorization.

78917010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84898.

The product of its (nonzero) digits is 3528, while the sum is 33.

The square root of 78917010 is about 8883.5246383403. The cubic root of 78917010 is about 428.9337382242.

Adding to 78917010 its reverse (1071987), we get a palindrome (79988997).

It can be divided in two parts, 78 and 917010, that multiplied together give a triangular number (71526780 = T₁₁₉₆₀).

The spelling of 78917010 in words is "seventy-eight million, nine hundred seventeen thousand, ten".