86436745 has 8 divisors (see below), whose sum is σ = 105145416. Its totient is φ = 68201856.

The previous prime is 86436739. The next prime is 86436769. The reversal of 86436745 is 54763468.

It can be written as a sum of positive squares in 4 ways, for example, as 28387584 + 58049161 = 5328^2 + 7619^2 .

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

It is not a de Polignac number, because 86436745 - 2¹³ = 86428553 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118042 + ... + 118771.

It is an arithmetic number, because the mean of its divisors is an integer number (13143177).

Almost surely, 2^86436745 is an apocalyptic number.

It is an amenable number.

86436745 is a deficient number, since it is larger than the sum of its proper divisors (18708671).

86436745 is a wasteful number, since it uses less digits than its factorization.

86436745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236891.

The product of its digits is 483840, while the sum is 43.

The square root of 86436745 is about 9297.1363870818. The cubic root of 86436745 is about 442.1464421292.

The spelling of 86436745 in words is "eighty-six million, four hundred thirty-six thousand, seven hundred forty-five".