11672505 has 48 divisors (see below), whose sum is σ = 22626240. Its totient is φ = 5738688.

The previous prime is 11672491. The next prime is 11672513. The reversal of 11672505 is 50527611.

It is not a de Polignac number, because 11672505 - 2¹¹ = 11670457 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 15426 + ... + 16164.

It is an arithmetic number, because the mean of its divisors is an integer number (471380).

Almost surely, 2^11672505 is an apocalyptic number.

11672505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11672505 is a deficient number, since it is larger than the sum of its proper divisors (10953735).

11672505 is an equidigital number, since it uses as much as digits as its factorization.

11672505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 11672505 is about 3416.5047929134. The cubic root of 11672505 is about 226.8408971348.

The spelling of 11672505 in words is "eleven million, six hundred seventy-two thousand, five hundred five".