86945773 has 4 divisors (see below), whose sum is σ = 90726048. Its totient is φ = 83165500.

The previous prime is 86945759. The next prime is 86945783. The reversal of 86945773 is 37754968.

It is a happy number.

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 not a de Polignac number, because 86945773 - 2¹³ = 86937581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86945713) 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, 1890103 + ... + 1890148.

It is an arithmetic number, because the mean of its divisors is an integer number (22681512).

Almost surely, 2^86945773 is an apocalyptic number.

It is an amenable number.

86945773 is a deficient number, since it is larger than the sum of its proper divisors (3780275).

86945773 is a wasteful number, since it uses less digits than its factorization.

86945773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780274.

The product of its digits is 1270080, while the sum is 49.

The square root of 86945773 is about 9324.4717276637. The cubic root of 86945773 is about 443.0126808057.

The spelling of 86945773 in words is "eighty-six million, nine hundred forty-five thousand, seven hundred seventy-three".