977670 has 80 divisors (see below), whose sum is σ = 2822688. Its totient is φ = 241920.

The previous prime is 977629. The next prime is 977671. The reversal of 977670 is 76779.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 977670.

It is not an unprimeable number, because it can be changed into a prime (977671) by changing a digit.

977670 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 (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13735 + ... + 13805.

2⁹⁷⁷⁶⁷⁰ is an apocalyptic number.

977670 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 977670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411344).

977670 is an abundant number, since it is smaller than the sum of its proper divisors (1845018).

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

977670 is a wasteful number, since it uses less digits than its factorization.

977670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 977670 is about 988.7719656220. The cubic root of 977670 is about 99.2500565746.

The spelling of 977670 in words is "nine hundred seventy-seven thousand, six hundred seventy".