11398623 has 8 divisors (see below), whose sum is σ = 15456000. Its totient is φ = 7470168.

The previous prime is 11398589. The next prime is 11398637. The reversal of 11398623 is 32689311.

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

It is not a de Polignac number, because 11398623 - 2⁶ = 11398559 is a prime.

It is a super-2 number, since 2×11398623² = 259857212592258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11398523) 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, 32023 + ... + 32376.

It is an arithmetic number, because the mean of its divisors is an integer number (1932000).

Almost surely, 2^11398623 is an apocalyptic number.

11398623 is a deficient number, since it is larger than the sum of its proper divisors (4057377).

11398623 is an equidigital number, since it uses as much as digits as its factorization.

11398623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64461.

The product of its digits is 7776, while the sum is 33.

The square root of 11398623 is about 3376.1846809676. The cubic root of 11398623 is about 225.0526494076.

It can be divided in two parts, 11398 and 623, that added together give a palindrome (12021).

The spelling of 11398623 in words is "eleven million, three hundred ninety-eight thousand, six hundred twenty-three".