85418377 has 6 divisors (see below), whose sum is σ = 93889754. Its totient is φ = 77652960.

The previous prime is 85418363. The next prime is 85418381. The reversal of 85418377 is 77381458.

It can be written as a sum of positive squares in only one way, i.e., 83557881 + 1860496 = 9141^2 + 1364^2 .

It is not a de Polignac number, because 85418377 - 2¹⁵ = 85385609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85418077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 352848 + ... + 353089.

Almost surely, 2^85418377 is an apocalyptic number.

It is an amenable number.

85418377 is a deficient number, since it is larger than the sum of its proper divisors (8471377).

85418377 is a wasteful number, since it uses less digits than its factorization.

85418377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705959 (or 705948 counting only the distinct ones).

The product of its digits is 188160, while the sum is 43.

The square root of 85418377 is about 9242.2062842159. The cubic root of 85418377 is about 440.4031721271.

The spelling of 85418377 in words is "eighty-five million, four hundred eighteen thousand, three hundred seventy-seven".