11671629 has 4 divisors (see below), whose sum is σ = 15562176. Its totient is φ = 7781084.

The previous prime is 11671609. The next prime is 11671637. The reversal of 11671629 is 92617611.

11671629 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92617611 = 3 ⋅30872537.

It is a cyclic number.

It is not a de Polignac number, because 11671629 - 2⁹ = 11671117 is a prime.

It is a super-3 number, since 3×11671629³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11671629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11671609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1945269 + ... + 1945274.

It is an arithmetic number, because the mean of its divisors is an integer number (3890544).

Almost surely, 2^11671629 is an apocalyptic number.

It is an amenable number.

11671629 is a deficient number, since it is larger than the sum of its proper divisors (3890547).

11671629 is an equidigital number, since it uses as much as digits as its factorization.

11671629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890546.

The product of its digits is 4536, while the sum is 33.

The square root of 11671629 is about 3416.3765893121. The cubic root of 11671629 is about 226.8352223290.

The spelling of 11671629 in words is "eleven million, six hundred seventy-one thousand, six hundred twenty-nine".