85410779 has 2 divisors, whose sum is σ = 85410780. Its totient is φ = 85410778.

The previous prime is 85410769. The next prime is 85410791. The reversal of 85410779 is 97701458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85410779 - 2¹² = 85406683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85410769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42705389 + 42705390.

It is an arithmetic number, because the mean of its divisors is an integer number (42705390).

Almost surely, 2^85410779 is an apocalyptic number.

85410779 is a deficient number, since it is larger than the sum of its proper divisors (1).

85410779 is an equidigital number, since it uses as much as digits as its factorization.

85410779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 85410779 is about 9241.7952260370. The cubic root of 85410779 is about 440.3901137251.

The spelling of 85410779 in words is "eighty-five million, four hundred ten thousand, seven hundred seventy-nine".