85778435 has 4 divisors (see below), whose sum is σ = 102934128. Its totient is φ = 68622744.

The previous prime is 85778377. The next prime is 85778449. The reversal of 85778435 is 53487758.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53487758 = 2 ⋅26743879.

It is a cyclic number.

It is not a de Polignac number, because 85778435 - 2²² = 81584131 is a prime.

It is a super-2 number, since 2×85778435² = 14715879822098450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85778435.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8577839 + ... + 8577848.

It is an arithmetic number, because the mean of its divisors is an integer number (25733532).

Almost surely, 2^85778435 is an apocalyptic number.

85778435 is a deficient number, since it is larger than the sum of its proper divisors (17155693).

85778435 is a wasteful number, since it uses less digits than its factorization.

85778435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17155692.

The product of its digits is 940800, while the sum is 47.

The square root of 85778435 is about 9261.6648071500. The cubic root of 85778435 is about 441.0211047364.

The spelling of 85778435 in words is "eighty-five million, seven hundred seventy-eight thousand, four hundred thirty-five".