681504383 has 8 divisors (see below), whose sum is σ = 791630880. Its totient is φ = 574570080.

The previous prime is 681504367. The next prime is 681504389. The reversal of 681504383 is 383405186.

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

It is not a de Polignac number, because 681504383 - 2⁴ = 681504367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681504389) 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, 797588 + ... + 798441.

It is an arithmetic number, because the mean of its divisors is an integer number (98953860).

Almost surely, 2^681504383 is an apocalyptic number.

681504383 is a deficient number, since it is larger than the sum of its proper divisors (110126497).

681504383 is a wasteful number, since it uses less digits than its factorization.

681504383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596097.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 681504383 is about 26105.6389119286. The cubic root of 681504383 is about 880.0139387427.

The spelling of 681504383 in words is "six hundred eighty-one million, five hundred four thousand, three hundred eighty-three".