977652 has 36 divisors (see below), whose sum is σ = 2662660. Its totient is φ = 300672.

The previous prime is 977629. The next prime is 977671. The reversal of 977652 is 256779.

It can be written as a sum of positive squares in 2 ways, for example, as 509796 + 467856 = 714^2 + 684^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

977652 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 (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577 + ... + 1512.

2⁹⁷⁷⁶⁵² is an apocalyptic number.

It is an amenable number.

977652 is an abundant number, since it is smaller than the sum of its proper divisors (1685008).

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

977652 is a wasteful number, since it uses less digits than its factorization.

977652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112 (or 2107 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 977652 is about 988.7628633803. The cubic root of 977652 is about 99.2494474693.

The spelling of 977652 in words is "nine hundred seventy-seven thousand, six hundred fifty-two".