11297620 has 12 divisors (see below), whose sum is σ = 23725044. Its totient is φ = 4519040.

The previous prime is 11297603. The next prime is 11297621. The reversal of 11297620 is 2679211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1774224 + 9523396 = 1332^2 + 3086^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11297621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282421 + ... + 282460.

It is an arithmetic number, because the mean of its divisors is an integer number (1977087).

Almost surely, 2^11297620 is an apocalyptic number.

11297620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11297620 is an abundant number, since it is smaller than the sum of its proper divisors (12427424).

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

11297620 is a wasteful number, since it uses less digits than its factorization.

11297620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564890 (or 564888 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 11297620 is about 3361.1932405025. The cubic root of 11297620 is about 224.3859470972.

The spelling of 11297620 in words is "eleven million, two hundred ninety-seven thousand, six hundred twenty".