85993977 has 8 divisors (see below), whose sum is σ = 114984864. Its totient is φ = 57166208.

The previous prime is 85993913. The next prime is 85993997. The reversal of 85993977 is 77939958.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85993977 - 2⁶ = 85993913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85993997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39543 + ... + 41660.

It is an arithmetic number, because the mean of its divisors is an integer number (14373108).

Almost surely, 2^85993977 is an apocalyptic number.

It is an amenable number.

85993977 is a deficient number, since it is larger than the sum of its proper divisors (28990887).

85993977 is a wasteful number, since it uses less digits than its factorization.

85993977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81559.

The product of its digits is 4286520, while the sum is 57.

The square root of 85993977 is about 9273.2937514132. The cubic root of 85993977 is about 441.3901915262.

It can be divided in two parts, 859939 and 77, that added together give a triangular number (860016 = T₁₃₁₁).

The spelling of 85993977 in words is "eighty-five million, nine hundred ninety-three thousand, nine hundred seventy-seven".