68306461 has 8 divisors (see below), whose sum is σ = 69085184. Its totient is φ = 67532400.

The previous prime is 68306431. The next prime is 68306467. The reversal of 68306461 is 16460386.

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 68306461 - 2⁵ = 68306429 is a prime.

It is a super-2 number, since 2×68306461² = 9331545228689042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68306467) 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, 34036 + ... + 35986.

It is an arithmetic number, because the mean of its divisors is an integer number (8635648).

Almost surely, 2^68306461 is an apocalyptic number.

It is an amenable number.

68306461 is a deficient number, since it is larger than the sum of its proper divisors (778723).

68306461 is a wasteful number, since it uses less digits than its factorization.

68306461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 68306461 is about 8264.7722896641. The cubic root of 68306461 is about 408.7777619889. Note that the first 4 decimals are identical.

The spelling of 68306461 in words is "sixty-eight million, three hundred six thousand, four hundred sixty-one".