68707961 has 8 divisors (see below), whose sum is σ = 78824064. Its totient is φ = 58667040.

The previous prime is 68707949. The next prime is 68707963. The reversal of 68707961 is 16970786.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68707961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68707963) 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, 16820 + ... + 20501.

It is an arithmetic number, because the mean of its divisors is an integer number (9853008).

Almost surely, 2^68707961 is an apocalyptic number.

It is an amenable number.

68707961 is a deficient number, since it is larger than the sum of its proper divisors (10116103).

68707961 is a wasteful number, since it uses less digits than its factorization.

68707961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37591.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 68707961 is about 8289.0265411567. The cubic root of 68707961 is about 409.5771190101.

The spelling of 68707961 in words is "sixty-eight million, seven hundred seven thousand, nine hundred sixty-one".