11039491 has 4 divisors (see below), whose sum is σ = 11080800. Its totient is φ = 10998184.

The previous prime is 11039489. The next prime is 11039507. The reversal of 11039491 is 19493011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19493011 = 401 ⋅48611.

It is a cyclic number.

It is not a de Polignac number, because 11039491 - 2¹ = 11039489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11039461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20251 + ... + 20788.

It is an arithmetic number, because the mean of its divisors is an integer number (2770200).

Almost surely, 2^11039491 is an apocalyptic number.

11039491 is a deficient number, since it is larger than the sum of its proper divisors (41309).

11039491 is an equidigital number, since it uses as much as digits as its factorization.

11039491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41308.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 11039491 is about 3322.5729487853. The cubic root of 11039491 is about 222.6638342216.

It can be divided in two parts, 110 and 39491, that added together give a square (39601 = 199²).

The spelling of 11039491 in words is "eleven million, thirty-nine thousand, four hundred ninety-one".