977952653 has 2 divisors, whose sum is σ = 977952654. Its totient is φ = 977952652.

The previous prime is 977952649. The next prime is 977952673. The reversal of 977952653 is 356259779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 904986889 + 72965764 = 30083^2 + 8542^2 .

It is an emirp because it is prime and its reverse (356259779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 977952653 - 2² = 977952649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 977952595 and 977952604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977952673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488976326 + 488976327.

It is an arithmetic number, because the mean of its divisors is an integer number (488976327).

Almost surely, 2^977952653 is an apocalyptic number.

It is an amenable number.

977952653 is a deficient number, since it is larger than the sum of its proper divisors (1).

977952653 is an equidigital number, since it uses as much as digits as its factorization.

977952653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3572100, while the sum is 53.

The square root of 977952653 is about 31272.2345380051. The cubic root of 977952653 is about 992.5962034121.

The spelling of 977952653 in words is "nine hundred seventy-seven million, nine hundred fifty-two thousand, six hundred fifty-three".