977629 has 2 divisors, whose sum is σ = 977630. Its totient is φ = 977628.

The previous prime is 977611. The next prime is 977671. The reversal of 977629 is 926779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 813604 + 164025 = 902^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 977629 - 2¹¹ = 975581 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 977591 and 977600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488814 + 488815.

It is an arithmetic number, because the mean of its divisors is an integer number (488815).

2⁹⁷⁷⁶²⁹ is an apocalyptic number.

It is an amenable number.

977629 is a deficient number, since it is larger than the sum of its proper divisors (1).

977629 is an equidigital number, since it uses as much as digits as its factorization.

977629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 40.

The square root of 977629 is about 988.7512326162. The cubic root of 977629 is about 99.2486691571.

The spelling of 977629 in words is "nine hundred seventy-seven thousand, six hundred twenty-nine".