10723909 has 4 divisors (see below), whose sum is σ = 12255904. Its totient is φ = 9191916.

The previous prime is 10723891. The next prime is 10723913. The reversal of 10723909 is 90932701.

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 10723909 - 2⁹ = 10723397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10723109) 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, 765987 + ... + 766000.

It is an arithmetic number, because the mean of its divisors is an integer number (3063976).

Almost surely, 2^10723909 is an apocalyptic number.

It is an amenable number.

10723909 is a deficient number, since it is larger than the sum of its proper divisors (1531995).

10723909 is an equidigital number, since it uses as much as digits as its factorization.

10723909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531994.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 10723909 is about 3274.7380047876. The cubic root of 10723909 is about 220.5215518413.

The spelling of 10723909 in words is "ten million, seven hundred twenty-three thousand, nine hundred nine".