1072205887 has 2 divisors, whose sum is σ = 1072205888. Its totient is φ = 1072205886.

The previous prime is 1072205857. The next prime is 1072205899. The reversal of 1072205887 is 7885022701.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1072205887 - 2¹⁹ = 1071681599 is a prime.

It is a super-2 number, since 2×1072205887² = 2299250928234913538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1072205837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536102943 + 536102944.

It is an arithmetic number, because the mean of its divisors is an integer number (536102944).

Almost surely, 2^1072205887 is an apocalyptic number.

1072205887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072205887 is an equidigital number, since it uses as much as digits as its factorization.

1072205887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 1072205887 is about 32744.5550740883. Note that the first 3 decimals coincide. The cubic root of 1072205887 is about 1023.5115057804.

The spelling of 1072205887 in words is "one billion, seventy-two million, two hundred five thousand, eight hundred eighty-seven".