1678013487 has 6 divisors (see below), whose sum is σ = 2423797272. Its totient is φ = 1118675652.

The previous prime is 1678013473. The next prime is 1678013489. The reversal of 1678013487 is 7843108761.

1678013487 is a `hidden beast` number, since 167 + 8 + 0 + 1 + 3 + 487 = 666.

It is not a de Polignac number, because 1678013487 - 2¹² = 1678009391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678013489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 93222963 + ... + 93222980.

It is an arithmetic number, because the mean of its divisors is an integer number (403966212).

Almost surely, 2^1678013487 is an apocalyptic number.

1678013487 is a deficient number, since it is larger than the sum of its proper divisors (745783785).

1678013487 is a wasteful number, since it uses less digits than its factorization.

1678013487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186445949 (or 186445946 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1678013487 is about 40963.5629187697. The cubic root of 1678013487 is about 1188.3156470892.

The spelling of 1678013487 in words is "one billion, six hundred seventy-eight million, thirteen thousand, four hundred eighty-seven".