11667401 has 4 divisors (see below), whose sum is σ = 11709204. Its totient is φ = 11625600.

The previous prime is 11667391. The next prime is 11667407. The reversal of 11667401 is 10476611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10476611 = 127 ⋅82493.

It can be written as a sum of positive squares in 2 ways, for example, as 9030025 + 2637376 = 3005^2 + 1624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11667401 is a prime.

It is a super-2 number, since 2×11667401² = 272256492189602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11667407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20480 + ... + 21041.

It is an arithmetic number, because the mean of its divisors is an integer number (2927301).

Almost surely, 2^11667401 is an apocalyptic number.

It is an amenable number.

11667401 is a deficient number, since it is larger than the sum of its proper divisors (41803).

11667401 is an equidigital number, since it uses as much as digits as its factorization.

11667401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41802.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 11667401 is about 3415.7577490214. The cubic root of 11667401 is about 226.8078289764.

The spelling of 11667401 in words is "eleven million, six hundred sixty-seven thousand, four hundred one".