85770456 has 16 divisors (see below), whose sum is σ = 214426200. Its totient is φ = 28590144.

The previous prime is 85770449. The next prime is 85770479. The reversal of 85770456 is 65407758.

It is a super-2 number, since 2×85770456² = 14713142244895872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1786861 + ... + 1786908.

Almost surely, 2^85770456 is an apocalyptic number.

It is an amenable number.

85770456 is an abundant number, since it is smaller than the sum of its proper divisors (128655744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85770456 is a wasteful number, since it uses less digits than its factorization.

85770456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573778 (or 3573774 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 85770456 is about 9261.2340430420. The cubic root of 85770456 is about 441.0074299065.

The spelling of 85770456 in words is "eighty-five million, seven hundred seventy thousand, four hundred fifty-six".