681241073 has 8 divisors (see below), whose sum is σ = 694294848. Its totient is φ = 668311344.

The previous prime is 681241063. The next prime is 681241079. The reversal of 681241073 is 370142186.

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 681241073 - 2⁸ = 681240817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (681241079) 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, 19886 + ... + 41927.

It is an arithmetic number, because the mean of its divisors is an integer number (86786856).

Almost surely, 2^681241073 is an apocalyptic number.

It is an amenable number.

681241073 is a deficient number, since it is larger than the sum of its proper divisors (13053775).

681241073 is a wasteful number, since it uses less digits than its factorization.

681241073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62023.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 681241073 is about 26100.5952614112. The cubic root of 681241073 is about 879.9005883741.

The spelling of 681241073 in words is "six hundred eighty-one million, two hundred forty-one thousand, seventy-three".