78528295 has 4 divisors (see below), whose sum is σ = 94233960. Its totient is φ = 62822632.

The previous prime is 78528293. The next prime is 78528299. The reversal of 78528295 is 59282587.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78528295 - 2¹ = 78528293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78528293) 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, 7852825 + ... + 7852834.

It is an arithmetic number, because the mean of its divisors is an integer number (23558490).

Almost surely, 2^78528295 is an apocalyptic number.

78528295 is a deficient number, since it is larger than the sum of its proper divisors (15705665).

78528295 is a wasteful number, since it uses less digits than its factorization.

78528295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15705664.

The product of its digits is 403200, while the sum is 46.

The square root of 78528295 is about 8861.6192087000. The cubic root of 78528295 is about 428.2283242544.

The spelling of 78528295 in words is "seventy-eight million, five hundred twenty-eight thousand, two hundred ninety-five".