78006371 has 4 divisors (see below), whose sum is σ = 78066744. Its totient is φ = 77946000.

The previous prime is 78006367. The next prime is 78006391. The reversal of 78006371 is 17360087.

It is a happy number.

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 78006371 - 2² = 78006367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78006311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28205 + ... + 30846.

It is an arithmetic number, because the mean of its divisors is an integer number (19516686).

Almost surely, 2^78006371 is an apocalyptic number.

78006371 is a deficient number, since it is larger than the sum of its proper divisors (60373).

78006371 is a wasteful number, since it uses less digits than its factorization.

78006371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60372.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 78006371 is about 8832.1215458122. The cubic root of 78006371 is about 427.2775008054.

The spelling of 78006371 in words is "seventy-eight million, six thousand, three hundred seventy-one".