10215723 has 16 divisors (see below), whose sum is σ = 15757056. Its totient is φ = 5766240.

The previous prime is 10215721. The next prime is 10215739. The reversal of 10215723 is 32751201.

It is not a de Polignac number, because 10215723 - 2¹ = 10215721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 10215723.

It is not an unprimeable number, because it can be changed into a prime (10215721) 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 15 ways as a sum of consecutive naturals, for example, 1188 + ... + 4673.

It is an arithmetic number, because the mean of its divisors is an integer number (984816).

Almost surely, 2^10215723 is an apocalyptic number.

10215723 is a deficient number, since it is larger than the sum of its proper divisors (5541333).

10215723 is an equidigital number, since it uses as much as digits as its factorization.

10215723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5954.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 10215723 is about 3196.2044678024. The cubic root of 10215723 is about 216.9816643742.

Adding to 10215723 its reverse (32751201), we get a palindrome (42966924).

The spelling of 10215723 in words is "ten million, two hundred fifteen thousand, seven hundred twenty-three".