88781447 has 2 divisors, whose sum is σ = 88781448. Its totient is φ = 88781446.

The previous prime is 88781437. The next prime is 88781467. The reversal of 88781447 is 74418788.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88781447 - 2¹⁸ = 88519303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88781417) 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 as a sum of consecutive naturals, namely, 44390723 + 44390724.

It is an arithmetic number, because the mean of its divisors is an integer number (44390724).

Almost surely, 2^88781447 is an apocalyptic number.

88781447 is a deficient number, since it is larger than the sum of its proper divisors (1).

88781447 is an equidigital number, since it uses as much as digits as its factorization.

88781447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 401408, while the sum is 47.

The square root of 88781447 is about 9422.3907263497. The cubic root of 88781447 is about 446.1087480399.

The spelling of 88781447 in words is "eighty-eight million, seven hundred eighty-one thousand, four hundred forty-seven".