11420997 has 8 divisors (see below), whose sum is σ = 17403456. Its totient is φ = 6526272.

The previous prime is 11420971. The next prime is 11421017. The reversal of 11420997 is 79902411.

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

It is not a de Polignac number, because 11420997 - 2⁷ = 11420869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420947) 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 7 ways as a sum of consecutive naturals, for example, 271908 + ... + 271949.

It is an arithmetic number, because the mean of its divisors is an integer number (2175432).

Almost surely, 2^11420997 is an apocalyptic number.

It is an amenable number.

11420997 is a deficient number, since it is larger than the sum of its proper divisors (5982459).

11420997 is an equidigital number, since it uses as much as digits as its factorization.

11420997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543867.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 11420997 is about 3379.4965601403. The cubic root of 11420997 is about 225.1998027671.

The spelling of 11420997 in words is "eleven million, four hundred twenty thousand, nine hundred ninety-seven".