78889876 has 48 divisors (see below), whose sum is σ = 153538560. Its totient is φ = 35449440.

The previous prime is 78889849. The next prime is 78889879. The reversal of 78889876 is 67898887.

It is a super-2 number, since 2×78889876² = 12447225070590752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78889879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412941 + ... + 413131.

It is an arithmetic number, because the mean of its divisors is an integer number (3198720).

Almost surely, 2^78889876 is an apocalyptic number.

It is an amenable number.

78889876 is a deficient number, since it is larger than the sum of its proper divisors (74648684).

78889876 is a wasteful number, since it uses less digits than its factorization.

78889876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 253 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 61.

The square root of 78889876 is about 8881.9972979055. The cubic root of 78889876 is about 428.8845725576.

The spelling of 78889876 in words is "seventy-eight million, eight hundred eighty-nine thousand, eight hundred seventy-six".