86542923 has 18 divisors (see below), whose sum is σ = 119183356. Its totient is φ = 55858400.

The previous prime is 86542919. The next prime is 86542927. The reversal of 86542923 is 32924568.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86542919) and next prime (86542927).

It is not a de Polignac number, because 86542923 - 2² = 86542919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86542927) 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 17 ways as a sum of consecutive naturals, for example, 660568 + ... + 660698.

Almost surely, 2^86542923 is an apocalyptic number.

86542923 is a deficient number, since it is larger than the sum of its proper divisors (32640433).

86542923 is an equidigital number, since it uses as much as digits as its factorization.

86542923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 175 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 86542923 is about 9302.8448874524. The cubic root of 86542923 is about 442.3274107489.

The spelling of 86542923 in words is "eighty-six million, five hundred forty-two thousand, nine hundred twenty-three".