11621647 has 8 divisors (see below), whose sum is σ = 12165120. Its totient is φ = 11081400.

The previous prime is 11621639. The next prime is 11621657. The reversal of 11621647 is 74612611.

11621647 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 not a de Polignac number, because 11621647 - 2³ = 11621639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9522 + ... + 10672.

It is an arithmetic number, because the mean of its divisors is an integer number (1520640).

Almost surely, 2^11621647 is an apocalyptic number.

11621647 is a deficient number, since it is larger than the sum of its proper divisors (543473).

11621647 is a wasteful number, since it uses less digits than its factorization.

11621647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613.

The product of its digits is 2016, while the sum is 28.

The square root of 11621647 is about 3409.0536810089. The cubic root of 11621647 is about 226.5109630886.

It can be divided in two parts, 1162 and 1647, that added together give a square (2809 = 53²).

The spelling of 11621647 in words is "eleven million, six hundred twenty-one thousand, six hundred forty-seven".