11439601 has 8 divisors (see below), whose sum is σ = 11891880. Its totient is φ = 10991232.

The previous prime is 11439587. The next prime is 11439629. The reversal of 11439601 is 10693411.

It can be written as a sum of positive squares in 4 ways, for example, as 390625 + 11048976 = 625^2 + 3324^2 .

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

It is not a de Polignac number, because 11439601 - 2⁷ = 11439473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11439101) 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, 5911 + ... + 7603.

It is an arithmetic number, because the mean of its divisors is an integer number (1486485).

Almost surely, 2^11439601 is an apocalyptic number.

It is an amenable number.

11439601 is a deficient number, since it is larger than the sum of its proper divisors (452279).

11439601 is a wasteful number, since it uses less digits than its factorization.

11439601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 11439601 is about 3382.2479211317. The cubic root of 11439601 is about 225.3220146406.

The spelling of 11439601 in words is "eleven million, four hundred thirty-nine thousand, six hundred one".