26992379 has 4 divisors (see below), whose sum is σ = 28580184. Its totient is φ = 25404576.

The previous prime is 26992373. The next prime is 26992397. The reversal of 26992379 is 97329962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26992379 - 2⁸ = 26992123 is a prime.

It is a super-4 number, since 4×26992379⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26992373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793877 + ... + 793910.

It is an arithmetic number, because the mean of its divisors is an integer number (7145046).

Almost surely, 2^26992379 is an apocalyptic number.

26992379 is a deficient number, since it is larger than the sum of its proper divisors (1587805).

26992379 is a wasteful number, since it uses less digits than its factorization.

26992379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587804.

The product of its digits is 367416, while the sum is 47.

The square root of 26992379 is about 5195.4190398850. The cubic root of 26992379 is about 299.9717714180.

The spelling of 26992379 in words is "twenty-six million, nine hundred ninety-two thousand, three hundred seventy-nine".