123686474 has 8 divisors (see below), whose sum is σ = 185627748. Its totient is φ = 61810560.

The previous prime is 123686461. The next prime is 123686483. The reversal of 123686474 is 474686321.

It can be written as a sum of positive squares in 2 ways, for example, as 89965225 + 33721249 = 9485^2 + 5807^2 .

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

It is a super-3 number, since 3×123686474³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11297 + ... + 19364.

Almost surely, 2^123686474 is an apocalyptic number.

123686474 is a deficient number, since it is larger than the sum of its proper divisors (61941274).

123686474 is a wasteful number, since it uses less digits than its factorization.

123686474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32680.

The product of its digits is 193536, while the sum is 41.

The square root of 123686474 is about 11121.4420827517. The cubic root of 123686474 is about 498.2424613544.

The spelling of 123686474 in words is "one hundred twenty-three million, six hundred eighty-six thousand, four hundred seventy-four".