11993401 has 4 divisors (see below), whose sum is σ = 13706752. Its totient is φ = 10280052.

The previous prime is 11993383. The next prime is 11993407. The reversal of 11993401 is 10439911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11993401 - 2⁷ = 11993273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11993401.

It is not an unprimeable number, because it can be changed into a prime (11993407) 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, 856665 + ... + 856678.

It is an arithmetic number, because the mean of its divisors is an integer number (3426688).

Almost surely, 2^11993401 is an apocalyptic number.

It is an amenable number.

11993401 is a deficient number, since it is larger than the sum of its proper divisors (1713351).

11993401 is an equidigital number, since it uses as much as digits as its factorization.

11993401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713350.

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

The square root of 11993401 is about 3463.1490005485. The cubic root of 11993401 is about 228.9008743196.

The spelling of 11993401 in words is "eleven million, nine hundred ninety-three thousand, four hundred one".