78006379 has 4 divisors (see below), whose sum is σ = 85097880. Its totient is φ = 70914880.

The previous prime is 78006367. The next prime is 78006391. The reversal of 78006379 is 97360087.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (78006367) and next prime (78006391).

It is a cyclic number.

It is not a de Polignac number, because 78006379 - 2⁵ = 78006347 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78006359) 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, 3545734 + ... + 3545755.

It is an arithmetic number, because the mean of its divisors is an integer number (21274470).

Almost surely, 2^78006379 is an apocalyptic number.

78006379 is a deficient number, since it is larger than the sum of its proper divisors (7091501).

78006379 is a wasteful number, since it uses less digits than its factorization.

78006379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7091500.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 78006379 is about 8832.1219987045. The cubic root of 78006379 is about 427.2775154120.

The spelling of 78006379 in words is "seventy-eight million, six thousand, three hundred seventy-nine".