11431724 has 6 divisors (see below), whose sum is σ = 20005524. Its totient is φ = 5715860.

The previous prime is 11431709. The next prime is 11431733. The reversal of 11431724 is 42713411.

It is a happy number.

It is a super-2 number, since 2×11431724² = 261368627224352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11431724.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428962 + ... + 1428969.

It is an arithmetic number, because the mean of its divisors is an integer number (3334254).

Almost surely, 2^11431724 is an apocalyptic number.

It is an amenable number.

11431724 is a deficient number, since it is larger than the sum of its proper divisors (8573800).

11431724 is a wasteful number, since it uses less digits than its factorization.

11431724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857935 (or 2857933 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 11431724 is about 3381.0832583656. The cubic root of 11431724 is about 225.2702858831.

The spelling of 11431724 in words is "eleven million, four hundred thirty-one thousand, seven hundred twenty-four".