26834661 has 24 divisors (see below), whose sum is σ = 44501184. Its totient is φ = 15264000.

The previous prime is 26834659. The next prime is 26834671. The reversal of 26834661 is 16643862.

It is not a de Polignac number, because 26834661 - 2¹ = 26834659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26834611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14965 + ... + 16661.

It is an arithmetic number, because the mean of its divisors is an integer number (1854216).

Almost surely, 2^26834661 is an apocalyptic number.

26834661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26834661 is a deficient number, since it is larger than the sum of its proper divisors (17666523).

26834661 is a wasteful number, since it uses less digits than its factorization.

26834661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961 (or 1958 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 26834661 is about 5180.2182386459. The cubic root of 26834661 is about 299.3863790870.

It can be divided in two parts, 26834 and 661, that added together give a triangular number (27495 = T₂₃₄).

The spelling of 26834661 in words is "twenty-six million, eight hundred thirty-four thousand, six hundred sixty-one".