10997775 has 30 divisors (see below), whose sum is σ = 20375432. Its totient is φ = 5864400.

The previous prime is 10997771. The next prime is 10997797. The reversal of 10997775 is 57779901.

10997775 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10997775 - 2² = 10997771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 10997775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10997771) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 691 + ... + 4740.

Almost surely, 2^10997775 is an apocalyptic number.

10997775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10997775 is a deficient number, since it is larger than the sum of its proper divisors (9377657).

10997775 is an equidigital number, since it uses as much as digits as its factorization.

10997775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453 (or 5439 counting only the distinct ones).

The product of its (nonzero) digits is 138915, while the sum is 45.

The square root of 10997775 is about 3316.2893420207. The cubic root of 10997775 is about 222.3830130285.

The spelling of 10997775 in words is "ten million, nine hundred ninety-seven thousand, seven hundred seventy-five".