11631471 has 8 divisors (see below), whose sum is σ = 15588144. Its totient is φ = 7714560.

The previous prime is 11631469. The next prime is 11631497. The reversal of 11631471 is 17413611.

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

It is not a de Polignac number, because 11631471 - 2¹ = 11631469 is a prime.

It is a super-3 number, since 3×11631471³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631071) 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, 9250 + ... + 10431.

It is an arithmetic number, because the mean of its divisors is an integer number (1948518).

Almost surely, 2^11631471 is an apocalyptic number.

11631471 is a deficient number, since it is larger than the sum of its proper divisors (3956673).

11631471 is a wasteful number, since it uses less digits than its factorization.

11631471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19881.

The product of its digits is 504, while the sum is 24.

The square root of 11631471 is about 3410.4942457069. The cubic root of 11631471 is about 226.5747697929.

The spelling of 11631471 in words is "eleven million, six hundred thirty-one thousand, four hundred seventy-one".