26948947 has 2 divisors, whose sum is σ = 26948948. Its totient is φ = 26948946.

The previous prime is 26948891. The next prime is 26948959. The reversal of 26948947 is 74984962.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26948947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26948947.

It is not a weakly prime, because it can be changed into another prime (26948147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13474473 + 13474474.

It is an arithmetic number, because the mean of its divisors is an integer number (13474474).

Almost surely, 2^26948947 is an apocalyptic number.

26948947 is a deficient number, since it is larger than the sum of its proper divisors (1).

26948947 is an equidigital number, since it uses as much as digits as its factorization.

26948947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 49.

The square root of 26948947 is about 5191.2375210541. The cubic root of 26948947 is about 299.8107955121.

The spelling of 26948947 in words is "twenty-six million, nine hundred forty-eight thousand, nine hundred forty-seven".