1072865873 has 2 divisors, whose sum is σ = 1072865874. Its totient is φ = 1072865872.

The previous prime is 1072865863. The next prime is 1072865921. The reversal of 1072865873 is 3785682701.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 935319889 + 137545984 = 30583^2 + 11728^2 .

It is an emirp because it is prime and its reverse (3785682701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1072865873 - 2⁶ = 1072865809 is a prime.

It is not a weakly prime, because it can be changed into another prime (1072865863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536432936 + 536432937.

It is an arithmetic number, because the mean of its divisors is an integer number (536432937).

Almost surely, 2^1072865873 is an apocalyptic number.

It is an amenable number.

1072865873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072865873 is an equidigital number, since it uses as much as digits as its factorization.

1072865873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 1072865873 is about 32754.6313213872. The cubic root of 1072865873 is about 1023.7214669208.

The spelling of 1072865873 in words is "one billion, seventy-two million, eight hundred sixty-five thousand, eight hundred seventy-three".