977000069 has 2 divisors, whose sum is σ = 977000070. Its totient is φ = 977000068.

The previous prime is 977000041. The next prime is 977000093. The reversal of 977000069 is 960000779.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 639837025 + 337163044 = 25295^2 + 18362^2 .

It is a cyclic number.

It is not a de Polignac number, because 977000069 - 2¹² = 976995973 is a prime.

It is a super-2 number, since 2×977000069² = 1909058269652009522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 976999996 and 977000041.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (977000369) 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, 488500034 + 488500035.

It is an arithmetic number, because the mean of its divisors is an integer number (488500035).

Almost surely, 2^977000069 is an apocalyptic number.

It is an amenable number.

977000069 is a deficient number, since it is larger than the sum of its proper divisors (1).

977000069 is an equidigital number, since it uses as much as digits as its factorization.

977000069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 977000069 is about 31257.0003199283. Note that the first 3 decimals coincide. The cubic root of 977000069 is about 992.2738161519.

The spelling of 977000069 in words is "nine hundred seventy-seven million, sixty-nine", and thus it is an aban number.