10909619 has 4 divisors (see below), whose sum is σ = 12468144. Its totient is φ = 9351096.

The previous prime is 10909601. The next prime is 10909621. The reversal of 10909619 is 91690901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10909619 is a prime.

It is a super-2 number, since 2×10909619² = 238039573450322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10909519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 779252 + ... + 779265.

It is an arithmetic number, because the mean of its divisors is an integer number (3117036).

Almost surely, 2^10909619 is an apocalyptic number.

10909619 is a deficient number, since it is larger than the sum of its proper divisors (1558525).

10909619 is an equidigital number, since it uses as much as digits as its factorization.

10909619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558524.

The product of its (nonzero) digits is 4374, while the sum is 35.

The square root of 10909619 is about 3302.9712381430. The cubic root of 10909619 is about 221.7872254539.

The spelling of 10909619 in words is "ten million, nine hundred nine thousand, six hundred nineteen".