88070509 has 2 divisors, whose sum is σ = 88070510. Its totient is φ = 88070508.

The previous prime is 88070497. The next prime is 88070533. The reversal of 88070509 is 90507088.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58094884 + 29975625 = 7622^2 + 5475^2 .

It is a cyclic number.

It is not a de Polignac number, because 88070509 - 2¹⁷ = 87939437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88074509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44035254 + 44035255.

It is an arithmetic number, because the mean of its divisors is an integer number (44035255).

Almost surely, 2^88070509 is an apocalyptic number.

It is an amenable number.

88070509 is a deficient number, since it is larger than the sum of its proper divisors (1).

88070509 is an equidigital number, since it uses as much as digits as its factorization.

88070509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 88070509 is about 9384.5889094835. The cubic root of 88070509 is about 444.9147823184.

The spelling of 88070509 in words is "eighty-eight million, seventy thousand, five hundred nine".