26980723 has 16 divisors (see below), whose sum is σ = 34329600. Its totient is φ = 21021000.

The previous prime is 26980711. The next prime is 26980729. The reversal of 26980723 is 32708962.

It is a de Polignac number, because none of the positive numbers 2^k-26980723 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26980729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198 + ... + 7348.

It is an arithmetic number, because the mean of its divisors is an integer number (2145600).

Almost surely, 2^26980723 is an apocalyptic number.

26980723 is a deficient number, since it is larger than the sum of its proper divisors (7348877).

26980723 is an equidigital number, since it uses as much as digits as its factorization.

26980723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7183 (or 7169 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 26980723 is about 5194.2971613107. The cubic root of 26980723 is about 299.9285867055.

The spelling of 26980723 in words is "twenty-six million, nine hundred eighty thousand, seven hundred twenty-three".