76842379 has 4 divisors (see below), whose sum is σ = 80183376. Its totient is φ = 73501384.

The previous prime is 76842361. The next prime is 76842391. The reversal of 76842379 is 97324867.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97324867 = 43 ⋅2263369.

It is a cyclic number.

It is not a de Polignac number, because 76842379 - 2⁵ = 76842347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76842319) 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, 1670464 + ... + 1670509.

It is an arithmetic number, because the mean of its divisors is an integer number (20045844).

Almost surely, 2^76842379 is an apocalyptic number.

76842379 is a deficient number, since it is larger than the sum of its proper divisors (3340997).

76842379 is a wasteful number, since it uses less digits than its factorization.

76842379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340996.

The product of its digits is 508032, while the sum is 46.

The square root of 76842379 is about 8765.9784964372. The cubic root of 76842379 is about 425.1415980317.

The spelling of 76842379 in words is "seventy-six million, eight hundred forty-two thousand, three hundred seventy-nine".