1387388875 has 8 divisors (see below), whose sum is σ = 1731461472. Its totient is φ = 1109911000.

The previous prime is 1387388837. The next prime is 1387388879. The reversal of 1387388875 is 5788837831.

It is not a de Polignac number, because 1387388875 - 2¹⁷ = 1387257803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387388879) 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 7 ways as a sum of consecutive naturals, for example, 5549431 + ... + 5549680.

It is an arithmetic number, because the mean of its divisors is an integer number (216432684).

Almost surely, 2^1387388875 is an apocalyptic number.

1387388875 is a deficient number, since it is larger than the sum of its proper divisors (344072597).

1387388875 is an equidigital number, since it uses as much as digits as its factorization.

1387388875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099126 (or 11099116 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 58.

The square root of 1387388875 is about 37247.6693901780. The cubic root of 1387388875 is about 1115.3197752941.

The spelling of 1387388875 in words is "one billion, three hundred eighty-seven million, three hundred eighty-eight thousand, eight hundred seventy-five".