78982535 has 4 divisors (see below), whose sum is σ = 94779048. Its totient is φ = 63186024.

The previous prime is 78982517. The next prime is 78982559. The reversal of 78982535 is 53528987.

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 78982535 - 2⁸ = 78982279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78982535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7898249 + ... + 7898258.

It is an arithmetic number, because the mean of its divisors is an integer number (23694762).

Almost surely, 2^78982535 is an apocalyptic number.

78982535 is a deficient number, since it is larger than the sum of its proper divisors (15796513).

78982535 is a wasteful number, since it uses less digits than its factorization.

78982535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15796512.

The product of its digits is 604800, while the sum is 47.

The square root of 78982535 is about 8887.2118799993. The cubic root of 78982535 is about 429.0524203182.

The spelling of 78982535 in words is "seventy-eight million, nine hundred eighty-two thousand, five hundred thirty-five".