1027220517 has 6 divisors (see below), whose sum is σ = 1483762982. Its totient is φ = 684813672.

The previous prime is 1027220473. The next prime is 1027220527. The reversal of 1027220517 is 7150227201.

It can be written as a sum of positive squares in only one way, i.e., 973065636 + 54154881 = 31194^2 + 7359^2 .

It is not a de Polignac number, because 1027220517 - 2¹⁴ = 1027204133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027220527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57067798 + ... + 57067815.

Almost surely, 2^1027220517 is an apocalyptic number.

It is an amenable number.

1027220517 is a deficient number, since it is larger than the sum of its proper divisors (456542465).

1027220517 is a wasteful number, since it uses less digits than its factorization.

1027220517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114135619 (or 114135616 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 1027220517 is about 32050.2810752106. The cubic root of 1027220517 is about 1008.9924000236.

Adding to 1027220517 its reverse (7150227201), we get a palindrome (8177447718).

The spelling of 1027220517 in words is "one billion, twenty-seven million, two hundred twenty thousand, five hundred seventeen".