681588962 has 8 divisors (see below), whose sum is σ = 1022623056. Its totient is φ = 340714612.

The previous prime is 681588953. The next prime is 681588977. The reversal of 681588962 is 269885186.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28628 + ... + 46719.

It is an arithmetic number, because the mean of its divisors is an integer number (127827882).

Almost surely, 2^681588962 is an apocalyptic number.

681588962 is a deficient number, since it is larger than the sum of its proper divisors (341034094).

681588962 is a wasteful number, since it uses less digits than its factorization.

681588962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79872.

The product of its digits is 1658880, while the sum is 53.

The square root of 681588962 is about 26107.2587990390. The cubic root of 681588962 is about 880.0503423335.

The spelling of 681588962 in words is "six hundred eighty-one million, five hundred eighty-eight thousand, nine hundred sixty-two".