1010721677 has 6 divisors (see below), whose sum is σ = 1175737518. Its totient is φ = 866332824.

The previous prime is 1010721643. The next prime is 1010721721. The reversal of 1010721677 is 7761270101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 930189001 + 80532676 = 30499^2 + 8974^2 .

It is not a de Polignac number, because 1010721677 - 2²² = 1006527373 is a prime.

It is a super-3 number, since 3×1010721677³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010721377) 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 in 5 ways as a sum of consecutive naturals, for example, 10313438 + ... + 10313535.

It is an arithmetic number, because the mean of its divisors is an integer number (195956253).

Almost surely, 2^1010721677 is an apocalyptic number.

It is an amenable number.

1010721677 is a deficient number, since it is larger than the sum of its proper divisors (165015841).

1010721677 is an equidigital number, since it uses as much as digits as its factorization.

1010721677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20626987 (or 20626980 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 32.

The square root of 1010721677 is about 31791.8492227174. The cubic root of 1010721677 is about 1003.5611951678.

Adding to 1010721677 its reverse (7761270101), we get a palindrome (8771991778).

The spelling of 1010721677 in words is "one billion, ten million, seven hundred twenty-one thousand, six hundred seventy-seven".