11970638 has 8 divisors (see below), whose sum is σ = 17971632. Its totient is φ = 5980096.

The previous prime is 11970587. The next prime is 11970643. The reversal of 11970638 is 83607911.

11970638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 11970598 and 11970607.

It is a congruent 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, 1631 + ... + 5157.

It is an arithmetic number, because the mean of its divisors is an integer number (2246454).

Almost surely, 2^11970638 is an apocalyptic number.

11970638 is a deficient number, since it is larger than the sum of its proper divisors (6000994).

11970638 is a wasteful number, since it uses less digits than its factorization.

11970638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5226.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 11970638 is about 3459.8609798661. The cubic root of 11970638 is about 228.7559676745.

The spelling of 11970638 in words is "eleven million, nine hundred seventy thousand, six hundred thirty-eight".