76997 has 4 divisors (see below), whose sum is σ = 79116. Its totient is φ = 74880.

The previous prime is 76991. The next prime is 77003. The reversal of 76997 is 79967.

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 (76991) and next prime (77003).

It can be written as a sum of positive squares in 2 ways, for example, as 51076 + 25921 = 226^2 + 161^2 .

It is a cyclic number.

It is not a de Polignac number, because 76997 - 2¹² = 72901 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 76997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76991) 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, 1004 + ... + 1077.

It is an arithmetic number, because the mean of its divisors is an integer number (19779).

2⁷⁶⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

76997 is a deficient number, since it is larger than the sum of its proper divisors (2119).

76997 is a wasteful number, since it uses less digits than its factorization.

76997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118.

The product of its digits is 23814, while the sum is 38.

The square root of 76997 is about 277.4833328328. The cubic root of 76997 is about 42.5426561348.

The spelling of 76997 in words is "seventy-six thousand, nine hundred ninety-seven".