977627201 has 2 divisors, whose sum is σ = 977627202. Its totient is φ = 977627200.

The previous prime is 977627137. The next prime is 977627237. The reversal of 977627201 is 102726779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 764467201 + 213160000 = 27649^2 + 14600^2 .

It is an emirp because it is prime and its reverse (102726779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 977627201 - 2⁶ = 977627137 is a prime.

It is not a weakly prime, because it can be changed into another prime (977623201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488813600 + 488813601.

It is an arithmetic number, because the mean of its divisors is an integer number (488813601).

Almost surely, 2^977627201 is an apocalyptic number.

It is an amenable number.

977627201 is a deficient number, since it is larger than the sum of its proper divisors (1).

977627201 is an equidigital number, since it uses as much as digits as its factorization.

977627201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 977627201 is about 31267.0305753521. The cubic root of 977627201 is about 992.4860827908.

The spelling of 977627201 in words is "nine hundred seventy-seven million, six hundred twenty-seven thousand, two hundred one".