86671730 has 16 divisors (see below), whose sum is σ = 164220480. Its totient is φ = 32843952.

The previous prime is 86671727. The next prime is 86671733. The reversal of 86671730 is 3717668.

It is an interprime number because it is at equal distance from previous prime (86671727) and next prime (86671733).

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (86671733) 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, 227894 + ... + 228273.

It is an arithmetic number, because the mean of its divisors is an integer number (10263780).

Almost surely, 2^86671730 is an apocalyptic number.

86671730 is a deficient number, since it is larger than the sum of its proper divisors (77548750).

86671730 is a wasteful number, since it uses less digits than its factorization.

86671730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456193.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 86671730 is about 9309.7653031642. The cubic root of 86671730 is about 442.5467493992.

The spelling of 86671730 in words is "eighty-six million, six hundred seventy-one thousand, seven hundred thirty".