26424621 has 6 divisors (see below), whose sum is σ = 38168910. Its totient is φ = 17616408.

The previous prime is 26424589. The next prime is 26424641. The reversal of 26424621 is 12642462.

It can be written as a sum of positive squares in only one way, i.e., 18922500 + 7502121 = 4350^2 + 2739^2 .

It is not a de Polignac number, because 26424621 - 2⁵ = 26424589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26424641) 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 5 ways as a sum of consecutive naturals, for example, 1468026 + ... + 1468043.

It is an arithmetic number, because the mean of its divisors is an integer number (6361485).

Almost surely, 2^26424621 is an apocalyptic number.

It is an amenable number.

26424621 is a deficient number, since it is larger than the sum of its proper divisors (11744289).

26424621 is a wasteful number, since it uses less digits than its factorization.

26424621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936075 (or 2936072 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 26424621 is about 5140.4884009207. The cubic root of 26424621 is about 297.8536471871.

The spelling of 26424621 in words is "twenty-six million, four hundred twenty-four thousand, six hundred twenty-one".