86724293 has 8 divisors (see below), whose sum is σ = 92933568. Its totient is φ = 80638144.

The previous prime is 86724289. The next prime is 86724301. The reversal of 86724293 is 39242768.

It is a happy number.

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 86724293 - 2² = 86724289 is a prime.

It is a super-2 number, since 2×86724293² = 15042205992699698, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86724293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86724203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29321 + ... + 32142.

It is an arithmetic number, because the mean of its divisors is an integer number (11616696).

Almost surely, 2^86724293 is an apocalyptic number.

86724293 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

86724293 is a deficient number, since it is larger than the sum of its proper divisors (6209275).

86724293 is a wasteful number, since it uses less digits than its factorization.

86724293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61563.

The product of its digits is 145152, while the sum is 41.

The square root of 86724293 is about 9312.5878787800. The cubic root of 86724293 is about 442.6361937273.

The spelling of 86724293 in words is "eighty-six million, seven hundred twenty-four thousand, two hundred ninety-three".