26021961 has 24 divisors (see below), whose sum is σ = 44441280. Its totient is φ = 14355936.

The previous prime is 26021959. The next prime is 26021969. The reversal of 26021961 is 16912062.

It is not a de Polignac number, because 26021961 - 2¹ = 26021959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26021969) 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, 5295 + ... + 8948.

It is an arithmetic number, because the mean of its divisors is an integer number (1851720).

Almost surely, 2^26021961 is an apocalyptic number.

26021961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26021961 is a deficient number, since it is larger than the sum of its proper divisors (18419319).

26021961 is a wasteful number, since it uses less digits than its factorization.

26021961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14285 (or 14282 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 26021961 is about 5101.1725122760. The cubic root of 26021961 is about 296.3329928243.

The spelling of 26021961 in words is "twenty-six million, twenty-one thousand, nine hundred sixty-one".