68984487 has 64 divisors (see below), whose sum is σ = 127249920. Its totient is φ = 36288000.

The previous prime is 68984483. The next prime is 68984491. The reversal of 68984487 is 78448986.

68984487 is a `hidden beast` number, since 6 + 89 + 84 + 487 = 666.

It is an interprime number because it is at equal distance from previous prime (68984483) and next prime (68984491).

It is not a de Polignac number, because 68984487 - 2² = 68984483 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68984483) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 65112 + ... + 66162.

It is an arithmetic number, because the mean of its divisors is an integer number (1988280).

Almost surely, 2^68984487 is an apocalyptic number.

68984487 is a deficient number, since it is larger than the sum of its proper divisors (58265433).

68984487 is a wasteful number, since it uses less digits than its factorization.

68984487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 1095 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 68984487 is about 8305.6900375586. The cubic root of 68984487 is about 410.1258526991.

The spelling of 68984487 in words is "sixty-eight million, nine hundred eighty-four thousand, four hundred eighty-seven".