68487965 has 16 divisors (see below), whose sum is σ = 101152128. Its totient is φ = 43350336.

The previous prime is 68487961. The next prime is 68488051. The reversal of 68487965 is 56978486.

It is a cyclic number.

It is not a de Polignac number, because 68487965 - 2² = 68487961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68487961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74807 + ... + 75716.

It is an arithmetic number, because the mean of its divisors is an integer number (6322008).

Almost surely, 2^68487965 is an apocalyptic number.

68487965 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68487965 is a deficient number, since it is larger than the sum of its proper divisors (32664163).

68487965 is a wasteful number, since it uses less digits than its factorization.

68487965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150548.

The product of its digits is 2903040, while the sum is 53.

The square root of 68487965 is about 8275.7455857463. The cubic root of 68487965 is about 409.1395099984.

The spelling of 68487965 in words is "sixty-eight million, four hundred eighty-seven thousand, nine hundred sixty-five".