1387704501 has 16 divisors (see below), whose sum is σ = 2164062400. Its totient is φ = 876444624.

The previous prime is 1387704467. The next prime is 1387704503. The reversal of 1387704501 is 1054077831.

1387704501 is a `hidden beast` number, since 1 + 3 + 87 + 70 + 4 + 501 = 666.

It is not a de Polignac number, because 1387704501 - 2¹¹ = 1387702453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387704503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1352026 + ... + 1353051.

It is an arithmetic number, because the mean of its divisors is an integer number (135253900).

Almost surely, 2^1387704501 is an apocalyptic number.

It is an amenable number.

1387704501 is a deficient number, since it is larger than the sum of its proper divisors (776357899).

1387704501 is a wasteful number, since it uses less digits than its factorization.

1387704501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705105 (or 2705099 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 1387704501 is about 37251.9060049281. The cubic root of 1387704501 is about 1115.4043459660.

The spelling of 1387704501 in words is "one billion, three hundred eighty-seven million, seven hundred four thousand, five hundred one".