26464591 has 2 divisors, whose sum is σ = 26464592. Its totient is φ = 26464590.

The previous prime is 26464573. The next prime is 26464601. The reversal of 26464591 is 19546462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26464591 - 2¹¹ = 26462543 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26464591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26464541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13232295 + 13232296.

It is an arithmetic number, because the mean of its divisors is an integer number (13232296).

Almost surely, 2^26464591 is an apocalyptic number.

26464591 is a deficient number, since it is larger than the sum of its proper divisors (1).

26464591 is an equidigital number, since it uses as much as digits as its factorization.

26464591 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 26464591 is about 5144.3746947515. The cubic root of 26464591 is about 298.0037497839.

The spelling of 26464591 in words is "twenty-six million, four hundred sixty-four thousand, five hundred ninety-one".