1298360787 has 8 divisors (see below), whose sum is σ = 1806415104. Its totient is φ = 827940168.

The previous prime is 1298360753. The next prime is 1298360797. The reversal of 1298360787 is 7870638921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1298360787 - 2²⁷ = 1164143059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1298360797) 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 in 7 ways as a sum of consecutive naturals, for example, 9408343 + ... + 9408480.

It is an arithmetic number, because the mean of its divisors is an integer number (225801888).

Almost surely, 2^1298360787 is an apocalyptic number.

1298360787 is a deficient number, since it is larger than the sum of its proper divisors (508054317).

1298360787 is a wasteful number, since it uses less digits than its factorization.

1298360787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18816849.

The product of its (nonzero) digits is 1016064, while the sum is 51.

The square root of 1298360787 is about 36032.7737899818. The cubic root of 1298360787 is about 1090.9339656569.

The spelling of 1298360787 in words is "one billion, two hundred ninety-eight million, three hundred sixty thousand, seven hundred eighty-seven".