1023727285 has 16 divisors (see below), whose sum is σ = 1441915776. Its totient is φ = 683011008.

The previous prime is 1023727283. The next prime is 1023727303. The reversal of 1023727285 is 5827273201.

It is a cyclic number.

It is not a de Polignac number, because 1023727285 - 2¹ = 1023727283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023727283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393967 + ... + 396556.

It is an arithmetic number, because the mean of its divisors is an integer number (90119736).

Almost surely, 2^1023727285 is an apocalyptic number.

It is an amenable number.

1023727285 is a deficient number, since it is larger than the sum of its proper divisors (418188491).

1023727285 is an equidigital number, since it uses as much as digits as its factorization.

1023727285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790572.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 1023727285 is about 31995.7385443749. The cubic root of 1023727285 is about 1007.8473529689.

The spelling of 1023727285 in words is "one billion, twenty-three million, seven hundred twenty-seven thousand, two hundred eighty-five".