830493681 has 8 divisors (see below), whose sum is σ = 1107492864. Its totient is φ = 553578480.

The previous prime is 830493577. The next prime is 830493709. The reversal of 830493681 is 186394038.

It is a happy number.

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

It is not a de Polignac number, because 830493681 - 2¹⁰ = 830492657 is a prime.

It is a super-2 number, since 2×830493681² = 1379439508361859522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (830493281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7675 + ... + 41471.

It is an arithmetic number, because the mean of its divisors is an integer number (138436608).

Almost surely, 2^830493681 is an apocalyptic number.

It is an amenable number.

830493681 is a deficient number, since it is larger than the sum of its proper divisors (276999183).

830493681 is a wasteful number, since it uses less digits than its factorization.

830493681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41991.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 830493681 is about 28818.2872669421. The cubic root of 830493681 is about 939.9659264094.

The spelling of 830493681 in words is "eight hundred thirty million, four hundred ninety-three thousand, six hundred eighty-one".