11651671 has 8 divisors (see below), whose sum is σ = 11905488. Its totient is φ = 11400000.

The previous prime is 11651659. The next prime is 11651677. The reversal of 11651671 is 17615611.

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

It is a cyclic number.

It is not a de Polignac number, because 11651671 - 2¹¹ = 11649623 is a prime.

It is a super-2 number, since 2×11651671² = 271522874184482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11651677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14931 + ... + 15691.

It is an arithmetic number, because the mean of its divisors is an integer number (1488186).

Almost surely, 2^11651671 is an apocalyptic number.

11651671 is a deficient number, since it is larger than the sum of its proper divisors (253817).

11651671 is an equidigital number, since it uses as much as digits as its factorization.

11651671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073.

The product of its digits is 1260, while the sum is 28.

The square root of 11651671 is about 3413.4544086599. The cubic root of 11651671 is about 226.7058556328.

The spelling of 11651671 in words is "eleven million, six hundred fifty-one thousand, six hundred seventy-one".