78704351 has 8 divisors (see below), whose sum is σ = 86710608. Its totient is φ = 70840000.

The previous prime is 78704317. The next prime is 78704357. The reversal of 78704351 is 15340787.

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

It is not a de Polignac number, because 78704351 - 2¹⁴ = 78687967 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 (78704357) 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 7 ways as a sum of consecutive naturals, for example, 34310 + ... + 36531.

It is an arithmetic number, because the mean of its divisors is an integer number (10838826).

Almost surely, 2^78704351 is an apocalyptic number.

78704351 is a deficient number, since it is larger than the sum of its proper divisors (8006257).

78704351 is a wasteful number, since it uses less digits than its factorization.

78704351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70953.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 78704351 is about 8871.5472720377. The cubic root of 78704351 is about 428.5481066304.

It can be divided in two parts, 7870 and 4351, that added together give a palindrome (12221).

The spelling of 78704351 in words is "seventy-eight million, seven hundred four thousand, three hundred fifty-one".