11631789 has 32 divisors (see below), whose sum is σ = 19174400. Its totient is φ = 6920640.

The previous prime is 11631779. The next prime is 11631799. The reversal of 11631789 is 98713611.

11631789 is a `hidden beast` number, since 11 + 631 + 7 + 8 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (11631779) and next prime (11631799).

It is not a de Polignac number, because 11631789 - 2⁴ = 11631773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631779) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10347 + ... + 11415.

It is an arithmetic number, because the mean of its divisors is an integer number (599200).

Almost surely, 2^11631789 is an apocalyptic number.

It is an amenable number.

11631789 is a deficient number, since it is larger than the sum of its proper divisors (7542611).

11631789 is a wasteful number, since it uses less digits than its factorization.

11631789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122 (or 1116 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 11631789 is about 3410.5408661970. The cubic root of 11631789 is about 226.5768345968.

The spelling of 11631789 in words is "eleven million, six hundred thirty-one thousand, seven hundred eighty-nine".