68977 has 4 divisors (see below), whose sum is σ = 72000. Its totient is φ = 65956.

The previous prime is 68963. The next prime is 68993. The reversal of 68977 is 77986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77986 = 2 ⋅38993.

It is a cyclic number.

It is not a de Polignac number, because 68977 - 2¹⁵ = 36209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68917) 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, 1477 + ... + 1522.

It is an arithmetic number, because the mean of its divisors is an integer number (18000).

2⁶⁸⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

68977 is a deficient number, since it is larger than the sum of its proper divisors (3023).

68977 is a wasteful number, since it uses less digits than its factorization.

68977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022.

The product of its digits is 21168, while the sum is 37.

The square root of 68977 is about 262.6347273306. The cubic root of 68977 is about 41.0111014951.

Subtracting 68977 from its reverse (77986), we obtain a palindrome (9009).

The spelling of 68977 in words is "sixty-eight thousand, nine hundred seventy-seven".