1323260787 has 16 divisors (see below), whose sum is σ = 1795461120. Its totient is φ = 866687712.

The previous prime is 1323260779. The next prime is 1323260803. The reversal of 1323260787 is 7870623231.

It is not a de Polignac number, because 1323260787 - 2³ = 1323260779 is a prime.

It is a super-2 number, since 2×1323260787² = 3502038220823718738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323260767) 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, 68389 + ... + 85577.

It is an arithmetic number, because the mean of its divisors is an integer number (112216320).

Almost surely, 2^1323260787 is an apocalyptic number.

1323260787 is a deficient number, since it is larger than the sum of its proper divisors (472200333).

1323260787 is a wasteful number, since it uses less digits than its factorization.

1323260787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17642.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 1323260787 is about 36376.6516738416. The cubic root of 1323260787 is about 1097.8638397387.

The spelling of 1323260787 in words is "one billion, three hundred twenty-three million, two hundred sixty thousand, seven hundred eighty-seven".