78412883 has 4 divisors (see below), whose sum is σ = 78696240. Its totient is φ = 78129528.

The previous prime is 78412861. The next prime is 78412931. The reversal of 78412883 is 38821487.

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 78412883 - 2⁸ = 78412627 is a prime.

It is a super-2 number, since 2×78412883² = 12297160440743378, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78412883.

It is not an unprimeable number, because it can be changed into a prime (78412813) 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, 141263 + ... + 141816.

It is an arithmetic number, because the mean of its divisors is an integer number (19674060).

Almost surely, 2^78412883 is an apocalyptic number.

78412883 is a deficient number, since it is larger than the sum of its proper divisors (283357).

78412883 is a wasteful number, since it uses less digits than its factorization.

78412883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283356.

The product of its digits is 86016, while the sum is 41.

The square root of 78412883 is about 8855.1049118573. The cubic root of 78412883 is about 428.0184342222.

The spelling of 78412883 in words is "seventy-eight million, four hundred twelve thousand, eight hundred eighty-three".