1364868987 has 32 divisors (see below), whose sum is σ = 1983610944. Its totient is φ = 831283200.

The previous prime is 1364868983. The next prime is 1364868991. The reversal of 1364868987 is 7898684631.

It is an interprime number because it is at equal distance from previous prime (1364868983) and next prime (1364868991).

It is not a de Polignac number, because 1364868987 - 2² = 1364868983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1364868987.

It is not an unprimeable number, because it can be changed into a prime (1364868983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1548787 + ... + 1549667.

It is an arithmetic number, because the mean of its divisors is an integer number (61987842).

Almost surely, 2^1364868987 is an apocalyptic number.

1364868987 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1364868987 is a deficient number, since it is larger than the sum of its proper divisors (618741957).

1364868987 is a wasteful number, since it uses less digits than its factorization.

1364868987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759.

The product of its digits is 13934592, while the sum is 60.

The square root of 1364868987 is about 36944.1333231678. The cubic root of 1364868987 is about 1109.2522591674.

The spelling of 1364868987 in words is "one billion, three hundred sixty-four million, eight hundred sixty-eight thousand, nine hundred eighty-seven".