85078377 has 16 divisors (see below), whose sum is σ = 127820160. Its totient is φ = 55918800.

The previous prime is 85078363. The next prime is 85078397. The reversal of 85078377 is 77387058.

It is not a de Polignac number, because 85078377 - 2⁶ = 85078313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85078327) 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 in 15 ways as a sum of consecutive naturals, for example, 20274 + ... + 24107.

It is an arithmetic number, because the mean of its divisors is an integer number (7988760).

Almost surely, 2^85078377 is an apocalyptic number.

It is an amenable number.

85078377 is a deficient number, since it is larger than the sum of its proper divisors (42741783).

85078377 is a wasteful number, since it uses less digits than its factorization.

85078377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44461 (or 44455 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 85078377 is about 9223.7940675191. The cubic root of 85078377 is about 439.8180670016.

It can be divided in two parts, 850783 and 77, that added together give a triangular number (850860 = T₁₃₀₄).

The spelling of 85078377 in words is "eighty-five million, seventy-eight thousand, three hundred seventy-seven".