1027972259 has 4 divisors (see below), whose sum is σ = 1047368016. Its totient is φ = 1008576504.

The previous prime is 1027972249. The next prime is 1027972261. The reversal of 1027972259 is 9522797201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9522797201 = 1087 ⋅8760623.

It is a cyclic number.

It is not a de Polignac number, because 1027972259 - 2²⁰ = 1026923683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1027972229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9697799 + ... + 9697904.

It is an arithmetic number, because the mean of its divisors is an integer number (261842004).

Almost surely, 2^1027972259 is an apocalyptic number.

1027972259 is a deficient number, since it is larger than the sum of its proper divisors (19395757).

1027972259 is an equidigital number, since it uses as much as digits as its factorization.

1027972259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19395756.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 1027972259 is about 32062.0064718352. The cubic root of 1027972259 is about 1009.2384740969.

The spelling of 1027972259 in words is "one billion, twenty-seven million, nine hundred seventy-two thousand, two hundred fifty-nine".