77926 has 8 divisors (see below), whose sum is σ = 119520. Its totient is φ = 38088.

The previous prime is 77899. The next prime is 77929. The reversal of 77926 is 62977.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×77926² = 12144922952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77929) by changing a digit.

77926 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321 + ... + 508.

It is an arithmetic number, because the mean of its divisors is an integer number (14940).

2⁷⁷⁹²⁶ is an apocalyptic number.

77926 is a deficient number, since it is larger than the sum of its proper divisors (41594).

77926 is a wasteful number, since it uses less digits than its factorization.

77926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878.

The product of its digits is 5292, while the sum is 31.

The square root of 77926 is about 279.1522881869. The cubic root of 77926 is about 42.7130707152.

The spelling of 77926 in words is "seventy-seven thousand, nine hundred twenty-six".