1487736477 has 20 divisors (see below), whose sum is σ = 2239402176. Its totient is φ = 984246120.

The previous prime is 1487736463. The next prime is 1487736479. The reversal of 1487736477 is 7746377841.

It is a happy number.

1487736477 is a `hidden beast` number, since 148 + 77 + 364 + 77 = 666.

It is not a de Polignac number, because 1487736477 - 2¹⁰ = 1487735453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1487736479) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 59493 + ... + 80714.

Almost surely, 2^1487736477 is an apocalyptic number.

It is an amenable number.

1487736477 is a deficient number, since it is larger than the sum of its proper divisors (751665699).

1487736477 is a wasteful number, since it uses less digits than its factorization.

1487736477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140350 (or 140341 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 54.

The square root of 1487736477 is about 38571.1871349587. The cubic root of 1487736477 is about 1141.5860955471.

The spelling of 1487736477 in words is "one billion, four hundred eighty-seven million, seven hundred thirty-six thousand, four hundred seventy-seven".