26997387 has 8 divisors (see below), whose sum is σ = 36212736. Its totient is φ = 17890152.

The previous prime is 26997359. The next prime is 26997391. The reversal of 26997387 is 78379962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26997387 - 2⁶ = 26997323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26997587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26443 + ... + 27444.

It is an arithmetic number, because the mean of its divisors is an integer number (4526592).

Almost surely, 2^26997387 is an apocalyptic number.

26997387 is a deficient number, since it is larger than the sum of its proper divisors (9215349).

26997387 is a wasteful number, since it uses less digits than its factorization.

26997387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54057.

The product of its digits is 1143072, while the sum is 51.

The square root of 26997387 is about 5195.9009805808. The cubic root of 26997387 is about 299.9903219100.

The spelling of 26997387 in words is "twenty-six million, nine hundred ninety-seven thousand, three hundred eighty-seven".