96778879 has 4 divisors (see below), whose sum is σ = 98365480. Its totient is φ = 95192280.

The previous prime is 96778873. The next prime is 96778883. The reversal of 96778879 is 97887769.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97887769 = 7 ⋅13983967.

It is a cyclic number.

It is not a de Polignac number, because 96778879 - 2¹⁹ = 96254591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61), and also a Moran number because the ratio is a prime number: 1586539 = 96778879 / (9 + 6 + 7 + 7 + 8 + 8 + 7 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (96778873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793209 + ... + 793330.

It is an arithmetic number, because the mean of its divisors is an integer number (24591370).

Almost surely, 2^96778879 is an apocalyptic number.

96778879 is a deficient number, since it is larger than the sum of its proper divisors (1586601).

96778879 is a wasteful number, since it uses less digits than its factorization.

96778879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1586600.

The product of its digits is 10668672, while the sum is 61.

The square root of 96778879 is about 9837.6256789939. The cubic root of 96778879 is about 459.1206878985.

The spelling of 96778879 in words is "ninety-six million, seven hundred seventy-eight thousand, eight hundred seventy-nine".