68869661 has 8 divisors (see below), whose sum is σ = 82850880. Its totient is φ = 55924128.

The previous prime is 68869651. The next prime is 68869663. The reversal of 68869661 is 16696886.

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

It is a cyclic number.

It is not a de Polignac number, because 68869661 - 2⁶ = 68869597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68869663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258776 + ... + 259041.

It is an arithmetic number, because the mean of its divisors is an integer number (10356360).

Almost surely, 2^68869661 is an apocalyptic number.

It is an amenable number.

68869661 is a deficient number, since it is larger than the sum of its proper divisors (13981219).

68869661 is a wasteful number, since it uses less digits than its factorization.

68869661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517843.

The product of its digits is 746496, while the sum is 50.

The square root of 68869661 is about 8298.7746685881. The cubic root of 68869661 is about 409.8981722136.

The spelling of 68869661 in words is "sixty-eight million, eight hundred sixty-nine thousand, six hundred sixty-one".