85921975 has 12 divisors (see below), whose sum is σ = 107524120. Its totient is φ = 68104800.

The previous prime is 85921919. The next prime is 85921981. The reversal of 85921975 is 57912958.

It is not a de Polignac number, because 85921975 - 2¹⁹ = 85397687 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13041 + ... + 18490.

Almost surely, 2^85921975 is an apocalyptic number.

85921975 is a deficient number, since it is larger than the sum of its proper divisors (21602145).

85921975 is a wasteful number, since it uses less digits than its factorization.

85921975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31650 (or 31645 counting only the distinct ones).

The product of its digits is 226800, while the sum is 46.

The square root of 85921975 is about 9269.4107148189. The cubic root of 85921975 is about 441.2669664206.

The spelling of 85921975 in words is "eighty-five million, nine hundred twenty-one thousand, nine hundred seventy-five".