68529487 has 12 divisors (see below), whose sum is σ = 75583704. Its totient is φ = 61765200.

The previous prime is 68529481. The next prime is 68529493. The reversal of 68529487 is 78492586.

It is an interprime number because it is at equal distance from previous prime (68529481) and next prime (68529493).

It is not a de Polignac number, because 68529487 - 2²³ = 60140879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68529487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68529481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22612 + ... + 25462.

It is an arithmetic number, because the mean of its divisors is an integer number (6298642).

Almost surely, 2^68529487 is an apocalyptic number.

68529487 is a deficient number, since it is larger than the sum of its proper divisors (7054217).

68529487 is a wasteful number, since it uses less digits than its factorization.

68529487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950 (or 2907 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 68529487 is about 8278.2538617754. The cubic root of 68529487 is about 409.2221759030. Note that the first 3 decimals are identical.

The spelling of 68529487 in words is "sixty-eight million, five hundred twenty-nine thousand, four hundred eighty-seven".