26428623 has 8 divisors (see below), whose sum is σ = 37948848. Its totient is φ = 16263744.

The previous prime is 26428621. The next prime is 26428627. The reversal of 26428623 is 32682462.

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

It is not a de Polignac number, because 26428623 - 2¹ = 26428621 is a prime.

It is a super-2 number, since 2×26428623² = 1396944227352258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26428621) 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 7 ways as a sum of consecutive naturals, for example, 338790 + ... + 338867.

It is an arithmetic number, because the mean of its divisors is an integer number (4743606).

Almost surely, 2^26428623 is an apocalyptic number.

26428623 is a deficient number, since it is larger than the sum of its proper divisors (11520225).

26428623 is a wasteful number, since it uses less digits than its factorization.

26428623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677673.

The product of its digits is 27648, while the sum is 33.

The square root of 26428623 is about 5140.8776488067. The cubic root of 26428623 is about 297.8686830398.

The spelling of 26428623 in words is "twenty-six million, four hundred twenty-eight thousand, six hundred twenty-three".