11473731 has 14 divisors (see below), whose sum is σ = 17203820. Its totient is φ = 7648668.

The previous prime is 11473729. The next prime is 11473753. The reversal of 11473731 is 13737411.

11473731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11473731 - 2¹ = 11473729 is a prime.

It is a super-2 number, since 2×11473731² = 263293006120722, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11473695 and 11473704.

It is not an unprimeable number, because it can be changed into a prime (11473031) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 7141 + ... + 8598.

Almost surely, 2^11473731 is an apocalyptic number.

11473731 is a deficient number, since it is larger than the sum of its proper divisors (5730089).

11473731 is an frugal number, since it uses more digits than its factorization.

11473731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15757 (or 15742 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 11473731 is about 3387.2896244638. The cubic root of 11473731 is about 225.5458745776.

The spelling of 11473731 in words is "eleven million, four hundred seventy-three thousand, seven hundred thirty-one".