85378432 has 16 divisors (see below), whose sum is σ = 170090100. Its totient is φ = 42689152.

The previous prime is 85378429. The next prime is 85378453. The reversal of 85378432 is 23487358.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333382 + ... + 333637.

Almost surely, 2^85378432 is an apocalyptic number.

It is an amenable number.

85378432 is a deficient number, since it is larger than the sum of its proper divisors (84711668).

85378432 is an equidigital number, since it uses as much as digits as its factorization.

85378432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667033 (or 667021 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 85378432 is about 9240.0450215353. The cubic root of 85378432 is about 440.3345114623.

The spelling of 85378432 in words is "eighty-five million, three hundred seventy-eight thousand, four hundred thirty-two".