86945961 has 8 divisors (see below), whose sum is σ = 117561024. Its totient is φ = 57147440.

The previous prime is 86945941. The next prime is 86945977. The reversal of 86945961 is 16954968.

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

It is a cyclic number.

It is not a de Polignac number, because 86945961 - 2⁶ = 86945897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86945961.

It is not an unprimeable number, because it can be changed into a prime (86945941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203886 + ... + 204311.

It is an arithmetic number, because the mean of its divisors is an integer number (14695128).

Almost surely, 2^86945961 is an apocalyptic number.

It is an amenable number.

86945961 is a deficient number, since it is larger than the sum of its proper divisors (30615063).

86945961 is a wasteful number, since it uses less digits than its factorization.

86945961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408271.

The product of its digits is 466560, while the sum is 48.

The square root of 86945961 is about 9324.4818086583. The cubic root of 86945961 is about 443.0130001094.

The spelling of 86945961 in words is "eighty-six million, nine hundred forty-five thousand, nine hundred sixty-one".