11717620 has 12 divisors (see below), whose sum is σ = 24607044. Its totient is φ = 4687040.

The previous prime is 11717593. The next prime is 11717633. The reversal of 11717620 is 2671711.

It can be written as a sum of positive squares in 2 ways, for example, as 8168164 + 3549456 = 2858^2 + 1884^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292921 + ... + 292960.

It is an arithmetic number, because the mean of its divisors is an integer number (2050587).

Almost surely, 2^11717620 is an apocalyptic number.

11717620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11717620 is an abundant number, since it is smaller than the sum of its proper divisors (12889424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11717620 is a wasteful number, since it uses less digits than its factorization.

11717620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585890 (or 585888 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 11717620 is about 3423.1009333644. The cubic root of 11717620 is about 227.1327730826.

The spelling of 11717620 in words is "eleven million, seven hundred seventeen thousand, six hundred twenty".