11621673 has 54 divisors (see below), whose sum is σ = 20891754. Its totient is φ = 6205248.

The previous prime is 11621671. The next prime is 11621677. The reversal of 11621673 is 37612611.

It can be written as a sum of positive squares in only one way, i.e., 10188864 + 1432809 = 3192^2 + 1197^2 .

It is not a de Polignac number, because 11621673 - 2¹ = 11621671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11621671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 159165 + ... + 159237.

Almost surely, 2^11621673 is an apocalyptic number.

It is an amenable number.

11621673 is a deficient number, since it is larger than the sum of its proper divisors (9270081).

11621673 is a wasteful number, since it uses less digits than its factorization.

11621673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 102 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 11621673 is about 3409.0574943817. The cubic root of 11621673 is about 226.5111320055.

The spelling of 11621673 in words is "eleven million, six hundred twenty-one thousand, six hundred seventy-three".