686370046 has 32 divisors (see below), whose sum is σ = 1069770240. Its totient is φ = 330096000.

The previous prime is 686370007. The next prime is 686370049. The reversal of 686370046 is 640073686.

It is a super-2 number, since 2×686370046² = 942207680092084232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 686369990 and 686370008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686370049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1711446 + ... + 1711846.

It is an arithmetic number, because the mean of its divisors is an integer number (33430320).

Almost surely, 2^686370046 is an apocalyptic number.

686370046 is a deficient number, since it is larger than the sum of its proper divisors (383400194).

686370046 is a wasteful number, since it uses less digits than its factorization.

686370046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 686370046 is about 26198.6649659863. The cubic root of 686370046 is about 882.1032876264.

The spelling of 686370046 in words is "six hundred eighty-six million, three hundred seventy thousand, forty-six".