912638 has 8 divisors (see below), whose sum is σ = 1373232. Its totient is φ = 454896.

The previous prime is 912631. The next prime is 912647. The reversal of 912638 is 836219.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 912638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912631) by changing a digit.

912638 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506 + ... + 1442.

It is an arithmetic number, because the mean of its divisors is an integer number (171654).

2⁹¹²⁶³⁸ is an apocalyptic number.

912638 is a deficient number, since it is larger than the sum of its proper divisors (460594).

912638 is a wasteful number, since it uses less digits than its factorization.

912638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426.

The product of its digits is 2592, while the sum is 29.

The square root of 912638 is about 955.3208884977. The cubic root of 912638 is about 96.9987600366.

The spelling of 912638 in words is "nine hundred twelve thousand, six hundred thirty-eight".