78427350 has 72 divisors (see below), whose sum is σ = 211720080. Its totient is φ = 20813760.

The previous prime is 78427337. The next prime is 78427357. The reversal of 78427350 is 5372487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78427357) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 178431 + ... + 178869.

Almost surely, 2^78427350 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78427350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105860040).

78427350 is an abundant number, since it is smaller than the sum of its proper divisors (133292730).

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

78427350 is a wasteful number, since it uses less digits than its factorization.

78427350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 78427350 is about 8855.9217476218. The cubic root of 78427350 is about 428.0447554153.

The spelling of 78427350 in words is "seventy-eight million, four hundred twenty-seven thousand, three hundred fifty".