68947541 has 8 divisors (see below), whose sum is σ = 75652920. Its totient is φ = 62442432.

The previous prime is 68947531. The next prime is 68947559. The reversal of 68947541 is 14574986.

It can be written as a sum of positive squares in 4 ways, for example, as 16080100 + 52867441 = 4010^2 + 7271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68947541 - 2¹⁰ = 68946517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68947492 and 68947501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68947511) 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 7 ways as a sum of consecutive naturals, for example, 49346 + ... + 50723.

It is an arithmetic number, because the mean of its divisors is an integer number (9456615).

Almost surely, 2^68947541 is an apocalyptic number.

It is an amenable number.

68947541 is a deficient number, since it is larger than the sum of its proper divisors (6705379).

68947541 is a wasteful number, since it uses less digits than its factorization.

68947541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100135.

The product of its digits is 241920, while the sum is 44.

The square root of 68947541 is about 8303.4656017834. The cubic root of 68947541 is about 410.0526226330.

The spelling of 68947541 in words is "sixty-eight million, nine hundred forty-seven thousand, five hundred forty-one".