86736961 has 4 divisors (see below), whose sum is σ = 87256512. Its totient is φ = 86217412.

The previous prime is 86736959. The next prime is 86736983. The reversal of 86736961 is 16963768.

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 86736961 - 2¹ = 86736959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86736901) 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, 259525 + ... + 259858.

It is an arithmetic number, because the mean of its divisors is an integer number (21814128).

Almost surely, 2^86736961 is an apocalyptic number.

It is an amenable number.

86736961 is a deficient number, since it is larger than the sum of its proper divisors (519551).

86736961 is a wasteful number, since it uses less digits than its factorization.

86736961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519550.

The product of its digits is 326592, while the sum is 46.

The square root of 86736961 is about 9313.2680085993. The cubic root of 86736961 is about 442.6577449448.

The spelling of 86736961 in words is "eighty-six million, seven hundred thirty-six thousand, nine hundred sixty-one".