11990535 has 8 divisors (see below), whose sum is σ = 19184880. Its totient is φ = 6394944.

The previous prime is 11990533. The next prime is 11990549. The reversal of 11990535 is 53509911.

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

It is not a de Polignac number, because 11990535 - 2¹ = 11990533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11990496 and 11990505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990533) 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, 399670 + ... + 399699.

It is an arithmetic number, because the mean of its divisors is an integer number (2398110).

Almost surely, 2^11990535 is an apocalyptic number.

11990535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11990535 is a deficient number, since it is larger than the sum of its proper divisors (7194345).

11990535 is an equidigital number, since it uses as much as digits as its factorization.

11990535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799377.

The product of its (nonzero) digits is 6075, while the sum is 33.

The square root of 11990535 is about 3462.7351905683. The cubic root of 11990535 is about 228.8826397874.

The spelling of 11990535 in words is "eleven million, nine hundred ninety thousand, five hundred thirty-five".