1387503607 has 8 divisors (see below), whose sum is σ = 1586049536. Its totient is φ = 1189040472.

The previous prime is 1387503599. The next prime is 1387503629. The reversal of 1387503607 is 7063057831.

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

It is a cyclic number.

It is not a de Polignac number, because 1387503607 - 2³ = 1387503599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1387503607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387503697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20758 + ... + 56620.

It is an arithmetic number, because the mean of its divisors is an integer number (198256192).

Almost surely, 2^1387503607 is an apocalyptic number.

1387503607 is a deficient number, since it is larger than the sum of its proper divisors (198545929).

1387503607 is an equidigital number, since it uses as much as digits as its factorization.

1387503607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41397.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 1387503607 is about 37249.2094815447. The cubic root of 1387503607 is about 1115.3505187393.

The spelling of 1387503607 in words is "one billion, three hundred eighty-seven million, five hundred three thousand, six hundred seven".