11671623 has 12 divisors (see below), whose sum is σ = 16916328. Its totient is φ = 7754640.

The previous prime is 11671609. The next prime is 11671637. The reversal of 11671623 is 32617611.

It is an interprime number because it is at equal distance from previous prime (11671609) and next prime (11671637).

It is not a de Polignac number, because 11671623 - 2¹⁰ = 11670599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11671663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 808 + ... + 4898.

It is an arithmetic number, because the mean of its divisors is an integer number (1409694).

Almost surely, 2^11671623 is an apocalyptic number.

11671623 is a deficient number, since it is larger than the sum of its proper divisors (5244705).

11671623 is a wasteful number, since it uses less digits than its factorization.

11671623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414 (or 4411 counting only the distinct ones).

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

The square root of 11671623 is about 3416.3757111887. The cubic root of 11671623 is about 226.8351834595.

The spelling of 11671623 in words is "eleven million, six hundred seventy-one thousand, six hundred twenty-three".