88721747 has 2 divisors, whose sum is σ = 88721748. Its totient is φ = 88721746.

The previous prime is 88721713. The next prime is 88721761. The reversal of 88721747 is 74712788.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 88721747 - 2⁶ = 88721683 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 88721698 and 88721707.

It is not a weakly prime, because it can be changed into another prime (88721777) 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, 44360873 + 44360874.

It is an arithmetic number, because the mean of its divisors is an integer number (44360874).

Almost surely, 2^88721747 is an apocalyptic number.

88721747 is a deficient number, since it is larger than the sum of its proper divisors (1).

88721747 is an equidigital number, since it uses as much as digits as its factorization.

88721747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 175616, while the sum is 44.

The square root of 88721747 is about 9419.2222078046. Note that the first 4 decimals coincide. The cubic root of 88721747 is about 446.0087321583.

The spelling of 88721747 in words is "eighty-eight million, seven hundred twenty-one thousand, seven hundred forty-seven".