76917838 has 4 divisors (see below), whose sum is σ = 115376760. Its totient is φ = 38458918.

The previous prime is 76917817. The next prime is 76917847. The reversal of 76917838 is 83871967.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83871967 = 8837 ⋅9491.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 76917791 and 76917800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19229458 + ... + 19229461.

It is an arithmetic number, because the mean of its divisors is an integer number (28844190).

Almost surely, 2^76917838 is an apocalyptic number.

76917838 is a deficient number, since it is larger than the sum of its proper divisors (38458922).

76917838 is a wasteful number, since it uses less digits than its factorization.

76917838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38458921.

The product of its digits is 508032, while the sum is 49.

The square root of 76917838 is about 8770.2815234176. The cubic root of 76917838 is about 425.2807151218.

The spelling of 76917838 in words is "seventy-six million, nine hundred seventeen thousand, eight hundred thirty-eight".