86854777 has 4 divisors (see below), whose sum is σ = 89656576. Its totient is φ = 84052980.

The previous prime is 86854763. The next prime is 86854787. The reversal of 86854777 is 77745868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86854777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86854787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400853 + ... + 1400914.

It is an arithmetic number, because the mean of its divisors is an integer number (22414144).

Almost surely, 2^86854777 is an apocalyptic number.

It is an amenable number.

86854777 is a deficient number, since it is larger than the sum of its proper divisors (2801799).

86854777 is a wasteful number, since it uses less digits than its factorization.

86854777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801798.

The product of its digits is 2634240, while the sum is 52.

The square root of 86854777 is about 9319.5910317996. The cubic root of 86854777 is about 442.8580769566.

It can be divided in two parts, 868547 and 77, that added together give a square (868624 = 932²).

The spelling of 86854777 in words is "eighty-six million, eight hundred fifty-four thousand, seven hundred seventy-seven".