1072768285 has 4 divisors (see below), whose sum is σ = 1287321948. Its totient is φ = 858214624.

The previous prime is 1072768273. The next prime is 1072768303. The reversal of 1072768285 is 5828672701.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 781929369 + 290838916 = 27963^2 + 17054^2 .

It is a cyclic number.

It is not a de Polignac number, because 1072768285 - 2¹⁷ = 1072637213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107276824 + ... + 107276833.

It is an arithmetic number, because the mean of its divisors is an integer number (321830487).

Almost surely, 2^1072768285 is an apocalyptic number.

It is an amenable number.

1072768285 is a deficient number, since it is larger than the sum of its proper divisors (214553663).

1072768285 is an equidigital number, since it uses as much as digits as its factorization.

1072768285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214553662.

The product of its (nonzero) digits is 376320, while the sum is 46.

The square root of 1072768285 is about 32753.1416050430. The cubic root of 1072768285 is about 1023.6904267065.

The spelling of 1072768285 in words is "one billion, seventy-two million, seven hundred sixty-eight thousand, two hundred eighty-five".