86921349 has 8 divisors (see below), whose sum is σ = 116393472. Its totient is φ = 57698400.

The previous prime is 86921327. The next prime is 86921369. The reversal of 86921349 is 94312968.

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

It is a de Polignac number, because none of the positive numbers 2^k-86921349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86921349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86921369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61477 + ... + 62874.

It is an arithmetic number, because the mean of its divisors is an integer number (14549184).

Almost surely, 2^86921349 is an apocalyptic number.

It is an amenable number.

86921349 is a deficient number, since it is larger than the sum of its proper divisors (29472123).

86921349 is a wasteful number, since it uses less digits than its factorization.

86921349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124587.

The product of its digits is 93312, while the sum is 42.

The square root of 86921349 is about 9323.1619636259. The cubic root of 86921349 is about 442.9711945832.

The spelling of 86921349 in words is "eighty-six million, nine hundred twenty-one thousand, three hundred forty-nine".