78862495 has 4 divisors (see below), whose sum is σ = 94635000. Its totient is φ = 63089992.

The previous prime is 78862493. The next prime is 78862499. The reversal of 78862495 is 59426887.

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 78862495 - 2¹ = 78862493 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78862493) 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, 7886245 + ... + 7886254.

It is an arithmetic number, because the mean of its divisors is an integer number (23658750).

Almost surely, 2^78862495 is an apocalyptic number.

78862495 is a deficient number, since it is larger than the sum of its proper divisors (15772505).

78862495 is a wasteful number, since it uses less digits than its factorization.

78862495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15772504.

The product of its digits is 967680, while the sum is 49.

The square root of 78862495 is about 8880.4557878523. The cubic root of 78862495 is about 428.8349479080.

The spelling of 78862495 in words is "seventy-eight million, eight hundred sixty-two thousand, four hundred ninety-five".