1027981653 has 16 divisors (see below), whose sum is σ = 1466236800. Its totient is φ = 638355456.

The previous prime is 1027981627. The next prime is 1027981667. The reversal of 1027981653 is 3561897201.

1027981653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1027981653 - 2¹⁴ = 1027965269 is a prime.

It is a super-2 number, since 2×1027981653² = 2113492557809224818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027981613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98953 + ... + 108846.

It is an arithmetic number, because the mean of its divisors is an integer number (91639800).

Almost surely, 2^1027981653 is an apocalyptic number.

It is an amenable number.

1027981653 is a deficient number, since it is larger than the sum of its proper divisors (438255147).

1027981653 is a wasteful number, since it uses less digits than its factorization.

1027981653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207916.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 1027981653 is about 32062.1529688822. The cubic root of 1027981653 is about 1009.2415483554.

The spelling of 1027981653 in words is "one billion, twenty-seven million, nine hundred eighty-one thousand, six hundred fifty-three".