1027276263 has 80 divisors (see below), whose sum is σ = 1712430720. Its totient is φ = 609762816.

The previous prime is 1027276241. The next prime is 1027276267. The reversal of 1027276263 is 3626727201.

It is a happy number.

1027276263 is a `hidden beast` number, since 1 + 0 + 2 + 7 + 27 + 626 + 3 = 666.

It is not a de Polignac number, because 1027276263 - 2⁵ = 1027276231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027276267) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4408795 + ... + 4409027.

It is an arithmetic number, because the mean of its divisors is an integer number (21405384).

Almost surely, 2^1027276263 is an apocalyptic number.

1027276263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1027276263 is a deficient number, since it is larger than the sum of its proper divisors (685154457).

1027276263 is a wasteful number, since it uses less digits than its factorization.

1027276263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 1027276263 is about 32051.1507281720. The cubic root of 1027276263 is about 1009.0106519542.

The spelling of 1027276263 in words is "one billion, twenty-seven million, two hundred seventy-six thousand, two hundred sixty-three".