1387027671 has 16 divisors (see below), whose sum is σ = 1985741568. Its totient is φ = 858032000.

The previous prime is 1387027661. The next prime is 1387027679. The reversal of 1387027671 is 1767207831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1387027671 - 2¹³ = 1387019479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387027679) 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 15 ways as a sum of consecutive naturals, for example, 187905 + ... + 195146.

It is an arithmetic number, because the mean of its divisors is an integer number (124108848).

Almost surely, 2^1387027671 is an apocalyptic number.

1387027671 is a deficient number, since it is larger than the sum of its proper divisors (598713897).

1387027671 is a wasteful number, since it uses less digits than its factorization.

1387027671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383142.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 1387027671 is about 37242.8203953460. The cubic root of 1387027671 is about 1115.2229764472. Note that the first 3 decimals are identical.

The spelling of 1387027671 in words is "one billion, three hundred eighty-seven million, twenty-seven thousand, six hundred seventy-one".