86936445 has 12 divisors (see below), whose sum is σ = 150689916. Its totient is φ = 46366080.

The previous prime is 86936413. The next prime is 86936459. The reversal of 86936445 is 54463968.

It can be written as a sum of positive squares in 2 ways, for example, as 38118276 + 48818169 = 6174^2 + 6987^2 .

It is not a de Polignac number, because 86936445 - 2⁵ = 86936413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1931921 = 86936445 / (8 + 6 + 9 + 3 + 6 + 4 + 4 + 5).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86936445.

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, 965916 + ... + 966005.

It is an arithmetic number, because the mean of its divisors is an integer number (12557493).

Almost surely, 2^86936445 is an apocalyptic number.

It is an amenable number.

86936445 is a deficient number, since it is larger than the sum of its proper divisors (63753471).

86936445 is a wasteful number, since it uses less digits than its factorization.

86936445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931932 (or 1931929 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 86936445 is about 9323.9715250530. The cubic root of 86936445 is about 442.9968373286.

The spelling of 86936445 in words is "eighty-six million, nine hundred thirty-six thousand, four hundred forty-five".