85701861 has 32 divisors (see below), whose sum is σ = 145716480. Its totient is φ = 48765888.

The previous prime is 85701859. The next prime is 85701877. The reversal of 85701861 is 16810758.

85701861 is a `hidden beast` number, since 8 + 570 + 1 + 86 + 1 = 666.

It is not a de Polignac number, because 85701861 - 2¹ = 85701859 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85701851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51535 + ... + 53171.

It is an arithmetic number, because the mean of its divisors is an integer number (4553640).

Almost surely, 2^85701861 is an apocalyptic number.

It is an amenable number.

85701861 is a deficient number, since it is larger than the sum of its proper divisors (60014619).

85701861 is a wasteful number, since it uses less digits than its factorization.

85701861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930 (or 1924 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 85701861 is about 9257.5299621443. The cubic root of 85701861 is about 440.8898331876.

The spelling of 85701861 in words is "eighty-five million, seven hundred one thousand, eight hundred sixty-one".