85488397 has 2 divisors, whose sum is σ = 85488398. Its totient is φ = 85488396.

The previous prime is 85488383. The next prime is 85488437. The reversal of 85488397 is 79388458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84989961 + 498436 = 9219^2 + 706^2 .

It is a cyclic number.

It is not a de Polignac number, because 85488397 - 2⁷ = 85488269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85488307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42744198 + 42744199.

It is an arithmetic number, because the mean of its divisors is an integer number (42744199).

Almost surely, 2^85488397 is an apocalyptic number.

It is an amenable number.

85488397 is a deficient number, since it is larger than the sum of its proper divisors (1).

85488397 is an equidigital number, since it uses as much as digits as its factorization.

85488397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 52.

The square root of 85488397 is about 9245.9935647825. The cubic root of 85488397 is about 440.5234764809.

The spelling of 85488397 in words is "eighty-five million, four hundred eighty-eight thousand, three hundred ninety-seven".