682491819 has 16 divisors (see below), whose sum is σ = 933593472. Its totient is φ = 443343168.

The previous prime is 682491787. The next prime is 682491827. The reversal of 682491819 is 918194286.

It is not a de Polignac number, because 682491819 - 2⁵ = 682491787 is a prime.

It is a super-2 number, since 2×682491819² = 931590166003857522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (682491839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 597 + ... + 36950.

It is an arithmetic number, because the mean of its divisors is an integer number (58349592).

Almost surely, 2^682491819 is an apocalyptic number.

682491819 is a deficient number, since it is larger than the sum of its proper divisors (251101653).

682491819 is a wasteful number, since it uses less digits than its factorization.

682491819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37706.

The product of its digits is 248832, while the sum is 48.

The square root of 682491819 is about 26124.5443788021. The cubic root of 682491819 is about 880.4387528860.

The spelling of 682491819 in words is "six hundred eighty-two million, four hundred ninety-one thousand, eight hundred nineteen".