1005632899 has 2 divisors, whose sum is σ = 1005632900. Its totient is φ = 1005632898.

The previous prime is 1005632867. The next prime is 1005632921. The reversal of 1005632899 is 9982365001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1005632899 - 2⁵ = 1005632867 is a prime.

It is a super-2 number, since 2×1005632899² = 2022595055102288402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1005632809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502816449 + 502816450.

It is an arithmetic number, because the mean of its divisors is an integer number (502816450).

Almost surely, 2^1005632899 is an apocalyptic number.

1005632899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005632899 is an equidigital number, since it uses as much as digits as its factorization.

1005632899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 1005632899 is about 31711.7154849749. The cubic root of 1005632899 is about 1001.8741184857.

The spelling of 1005632899 in words is "one billion, five million, six hundred thirty-two thousand, eight hundred ninety-nine".