11287616 has 14 divisors (see below), whose sum is σ = 22398990. Its totient is φ = 5643776.

The previous prime is 11287607. The next prime is 11287631. The reversal of 11287616 is 61678211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6270016 + 5017600 = 2504^2 + 2240^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88121 + ... + 88248.

Almost surely, 2^11287616 is an apocalyptic number.

11287616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11287616 is a deficient number, since it is larger than the sum of its proper divisors (11111374).

11287616 is an equidigital number, since it uses as much as digits as its factorization.

11287616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176381 (or 176371 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 11287616 is about 3359.7047489326. The cubic root of 11287616 is about 224.3196965678.

The spelling of 11287616 in words is "eleven million, two hundred eighty-seven thousand, six hundred sixteen".