78982575 has 96 divisors (see below), whose sum is σ = 161513472. Its totient is φ = 33264000.

The previous prime is 78982571. The next prime is 78982577. The reversal of 78982575 is 57528987.

It is not a de Polignac number, because 78982575 - 2² = 78982571 is a prime.

Its product of digits (1411200) is a multiple of the sum of its prime divisors (280).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78982571) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 374220 + ... + 374430.

It is an arithmetic number, because the mean of its divisors is an integer number (1682432).

Almost surely, 2^78982575 is an apocalyptic number.

78982575 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78982575 is an abundant number, since it is smaller than the sum of its proper divisors (82530897).

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

78982575 is a wasteful number, since it uses less digits than its factorization.

78982575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 280 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 51.

The square root of 78982575 is about 8887.2141304235. The cubic root of 78982575 is about 429.0524927481.

The spelling of 78982575 in words is "seventy-eight million, nine hundred eighty-two thousand, five hundred seventy-five".