78076281 has 8 divisors (see below), whose sum is σ = 104538240. Its totient is φ = 51832592.

The previous prime is 78076249. The next prime is 78076289. The reversal of 78076281 is 18267087.

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 78076281 - 2⁵ = 78076249 is a prime.

It is a super-2 number, since 2×78076281² = 12191811309581922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78076289) 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, 53730 + ... + 55163.

It is an arithmetic number, because the mean of its divisors is an integer number (13067280).

Almost surely, 2^78076281 is an apocalyptic number.

It is an amenable number.

78076281 is a deficient number, since it is larger than the sum of its proper divisors (26461959).

78076281 is a wasteful number, since it uses less digits than its factorization.

78076281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109135.

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 78076281 is about 8836.0783722192. The cubic root of 78076281 is about 427.4051059852.

The spelling of 78076281 in words is "seventy-eight million, seventy-six thousand, two hundred eighty-one".