11720493 has 6 divisors (see below), whose sum is σ = 16929614. Its totient is φ = 7813656.

The previous prime is 11720483. The next prime is 11720509. The reversal of 11720493 is 39402711.

11720493 is a `hidden beast` number, since 1 + 172 + 0 + 493 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10323369 + 1397124 = 3213^2 + 1182^2 .

It is not a de Polignac number, because 11720493 - 2¹⁰ = 11719469 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 (11720483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 651130 + ... + 651147.

Almost surely, 2^11720493 is an apocalyptic number.

It is an amenable number.

11720493 is a deficient number, since it is larger than the sum of its proper divisors (5209121).

11720493 is a wasteful number, since it uses less digits than its factorization.

11720493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302283 (or 1302280 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 11720493 is about 3423.5205563864. The cubic root of 11720493 is about 227.1513348478.

The spelling of 11720493 in words is "eleven million, seven hundred twenty thousand, four hundred ninety-three".