86742253 has 8 divisors (see below), whose sum is σ = 93605400. Its totient is φ = 79906368.

The previous prime is 86742251. The next prime is 86742263. The reversal of 86742253 is 35224768.

It can be written as a sum of positive squares in 4 ways, for example, as 7941124 + 78801129 = 2818^2 + 8877^2 .

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 86742253 - 2¹ = 86742251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86742251) 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, 63 + ... + 13171.

It is an arithmetic number, because the mean of its divisors is an integer number (11700675).

Almost surely, 2^86742253 is an apocalyptic number.

It is an amenable number.

86742253 is a deficient number, since it is larger than the sum of its proper divisors (6863147).

86742253 is a wasteful number, since it uses less digits than its factorization.

86742253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13631.

The product of its digits is 80640, while the sum is 37.

The square root of 86742253 is about 9313.5521150633. The cubic root of 86742253 is about 442.6667472475. Note that the first 3 decimals are identical.

The spelling of 86742253 in words is "eighty-six million, seven hundred forty-two thousand, two hundred fifty-three".