26980993 has 16 divisors (see below), whose sum is σ = 30030336. Its totient is φ = 24082560.

The previous prime is 26980981. The next prime is 26980999. The reversal of 26980993 is 39908962.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 26980993 - 2²¹ = 24883841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26980999) 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, 118746 + ... + 118972.

It is an arithmetic number, because the mean of its divisors is an integer number (1876896).

Almost surely, 2^26980993 is an apocalyptic number.

It is an amenable number.

26980993 is a deficient number, since it is larger than the sum of its proper divisors (3049343).

26980993 is a wasteful number, since it uses less digits than its factorization.

26980993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 26980993 is about 5194.3231512874. The cubic root of 26980993 is about 299.9295871784.

The spelling of 26980993 in words is "twenty-six million, nine hundred eighty thousand, nine hundred ninety-three".