85369469 has 2 divisors, whose sum is σ = 85369470. Its totient is φ = 85369468.

The previous prime is 85369441. The next prime is 85369499. The reversal of 85369469 is 96496358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78676900 + 6692569 = 8870^2 + 2587^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85369469 is a prime.

It is a super-2 number, since 2×85369469² = 14575892474683922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85369499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42684734 + 42684735.

It is an arithmetic number, because the mean of its divisors is an integer number (42684735).

Almost surely, 2^85369469 is an apocalyptic number.

It is an amenable number.

85369469 is a deficient number, since it is larger than the sum of its proper divisors (1).

85369469 is an equidigital number, since it uses as much as digits as its factorization.

85369469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 50.

The square root of 85369469 is about 9239.5600003463. The cubic root of 85369469 is about 440.3191021985.

The spelling of 85369469 in words is "eighty-five million, three hundred sixty-nine thousand, four hundred sixty-nine".