11361997 has 8 divisors (see below), whose sum is σ = 12072600. Its totient is φ = 10672704.

The previous prime is 11361983. The next prime is 11362063. The reversal of 11361997 is 79916311.

It can be written as a sum of positive squares in 4 ways, for example, as 1943236 + 9418761 = 1394^2 + 3069^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11361997 - 2⁷ = 11361869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11361937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4222 + ... + 6367.

It is an arithmetic number, because the mean of its divisors is an integer number (1509075).

Almost surely, 2^11361997 is an apocalyptic number.

It is an amenable number.

11361997 is a deficient number, since it is larger than the sum of its proper divisors (710603).

11361997 is a wasteful number, since it uses less digits than its factorization.

11361997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10655.

The product of its digits is 10206, while the sum is 37.

The square root of 11361997 is about 3370.7561466235. The cubic root of 11361997 is about 224.8113447435.

The spelling of 11361997 in words is "eleven million, three hundred sixty-one thousand, nine hundred ninety-seven".