976666 has 4 divisors (see below), whose sum is σ = 1465002. Its totient is φ = 488332.

The previous prime is 976643. The next prime is 976669. The reversal of 976666 is 666679.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 666679 = 13 ⋅51283.

It can be written as a sum of positive squares in only one way, i.e., 958441 + 18225 = 979^2 + 135^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (976669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244165 + ... + 244168.

2⁹⁷⁶⁶⁶⁶ is an apocalyptic number.

976666 is a deficient number, since it is larger than the sum of its proper divisors (488336).

976666 is a wasteful number, since it uses less digits than its factorization.

976666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488335.

The product of its digits is 81648, while the sum is 40.

The square root of 976666 is about 988.2641347332. The cubic root of 976666 is about 99.2160706057.

The spelling of 976666 in words is "nine hundred seventy-six thousand, six hundred sixty-six".