976668 has 72 divisors (see below), whose sum is σ = 2911104. Its totient is φ = 252000.

The previous prime is 976643. The next prime is 976669. The reversal of 976668 is 866679.

It is a happy number.

It is a super-3 number, since 3×976668³ = 2794873335437848896, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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

976668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6393 + ... + 6543.

It is an arithmetic number, because the mean of its divisors is an integer number (40432).

2⁹⁷⁶⁶⁶⁸ is an apocalyptic number.

976668 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 976668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455552).

976668 is an abundant number, since it is smaller than the sum of its proper divisors (1934436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

976668 is a wasteful number, since it uses less digits than its factorization.

976668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 174 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 976668 is about 988.2651466079. The cubic root of 976668 is about 99.2161383300.

The spelling of 976668 in words is "nine hundred seventy-six thousand, six hundred sixty-eight".