78882559 has 8 divisors (see below), whose sum is σ = 91387040. Its totient is φ = 66686976.

The previous prime is 78882553. The next prime is 78882563. The reversal of 78882559 is 95528887.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78882559 - 2¹¹ = 78880511 is a prime.

It is a super-2 number, since 2×78882559² = 12444916228776962, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78882553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76674 + ... + 77695.

It is an arithmetic number, because the mean of its divisors is an integer number (11423380).

Almost surely, 2^78882559 is an apocalyptic number.

78882559 is a deficient number, since it is larger than the sum of its proper divisors (12504481).

78882559 is a wasteful number, since it uses less digits than its factorization.

78882559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154449.

The product of its digits is 1612800, while the sum is 52.

The square root of 78882559 is about 8881.5853877559. The cubic root of 78882559 is about 428.8713125315.

The spelling of 78882559 in words is "seventy-eight million, eight hundred eighty-two thousand, five hundred fifty-nine".