85347401 has 2 divisors, whose sum is σ = 85347402. Its totient is φ = 85347400.

The previous prime is 85347343. The next prime is 85347403. The reversal of 85347401 is 10474358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85082176 + 265225 = 9224^2 + 515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85347401 is a prime.

Together with 85347403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85347403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42673700 + 42673701.

It is an arithmetic number, because the mean of its divisors is an integer number (42673701).

Almost surely, 2^85347401 is an apocalyptic number.

It is an amenable number.

85347401 is a deficient number, since it is larger than the sum of its proper divisors (1).

85347401 is an equidigital number, since it uses as much as digits as its factorization.

85347401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 85347401 is about 9238.3657104490. The cubic root of 85347401 is about 440.2811581128.

The spelling of 85347401 in words is "eighty-five million, three hundred forty-seven thousand, four hundred one".