10920399 has 8 divisors (see below), whose sum is σ = 16640640. Its totient is φ = 6240216.

The previous prime is 10920367. The next prime is 10920431. The reversal of 10920399 is 99302901.

It is an interprime number because it is at equal distance from previous prime (10920367) and next prime (10920431).

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

It is not a de Polignac number, because 10920399 - 2⁵ = 10920367 is a prime.

It is a super-2 number, since 2×10920399² = 238510228638402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10920499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259989 + ... + 260030.

It is an arithmetic number, because the mean of its divisors is an integer number (2080080).

Almost surely, 2^10920399 is an apocalyptic number.

10920399 is a deficient number, since it is larger than the sum of its proper divisors (5720241).

10920399 is an equidigital number, since it uses as much as digits as its factorization.

10920399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520029.

The product of its (nonzero) digits is 4374, while the sum is 33.

The square root of 10920399 is about 3304.6026992666. The cubic root of 10920399 is about 221.8602521177.

The spelling of 10920399 in words is "ten million, nine hundred twenty thousand, three hundred ninety-nine".