1006728553 has 2 divisors, whose sum is σ = 1006728554. Its totient is φ = 1006728552.

The previous prime is 1006728511. The next prime is 1006728563. The reversal of 1006728553 is 3558276001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886431529 + 120297024 = 29773^2 + 10968^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006728553 - 2¹³ = 1006720361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1006728563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503364276 + 503364277.

It is an arithmetic number, because the mean of its divisors is an integer number (503364277).

Almost surely, 2^1006728553 is an apocalyptic number.

It is an amenable number.

1006728553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006728553 is an equidigital number, since it uses as much as digits as its factorization.

1006728553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 1006728553 is about 31728.9860064894. The cubic root of 1006728553 is about 1002.2378393394.

The spelling of 1006728553 in words is "one billion, six million, seven hundred twenty-eight thousand, five hundred fifty-three".