88070561 has 2 divisors, whose sum is σ = 88070562. Its totient is φ = 88070560.

The previous prime is 88070533. The next prime is 88070603. The reversal of 88070561 is 16507088.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84070561 + 4000000 = 9169^2 + 2000^2 .

It is a cyclic number.

It is not a de Polignac number, because 88070561 - 2⁶ = 88070497 is a prime.

It is not a weakly prime, because it can be changed into another prime (88070161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44035280 + 44035281.

It is an arithmetic number, because the mean of its divisors is an integer number (44035281).

Almost surely, 2^88070561 is an apocalyptic number.

It is an amenable number.

88070561 is a deficient number, since it is larger than the sum of its proper divisors (1).

88070561 is an equidigital number, since it uses as much as digits as its factorization.

88070561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 88070561 is about 9384.5916799827. The cubic root of 88070561 is about 444.9148698829.

The spelling of 88070561 in words is "eighty-eight million, seventy thousand, five hundred sixty-one".