681300423 has 32 divisors (see below), whose sum is σ = 1096755200. Its totient is φ = 416404800.

The previous prime is 681300413. The next prime is 681300427. The reversal of 681300423 is 324003186.

It is a happy number.

It is not a de Polignac number, because 681300423 - 2⁴ = 681300407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681300427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5518 + ... + 37323.

It is an arithmetic number, because the mean of its divisors is an integer number (34273600).

Almost surely, 2^681300423 is an apocalyptic number.

681300423 is a deficient number, since it is larger than the sum of its proper divisors (415454777).

681300423 is a wasteful number, since it uses less digits than its factorization.

681300423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42900 (or 42894 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 681300423 is about 26101.7321838992. The cubic root of 681300423 is about 879.9261400648.

The spelling of 681300423 in words is "six hundred eighty-one million, three hundred thousand, four hundred twenty-three".