86615749 has 8 divisors (see below), whose sum is σ = 94779360. Its totient is φ = 78500400.

The previous prime is 86615747. The next prime is 86615761. The reversal of 86615749 is 94751668.

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

It is not a de Polignac number, because 86615749 - 2¹ = 86615747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86615699 and 86615708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86615747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8254 + ... + 15535.

It is an arithmetic number, because the mean of its divisors is an integer number (11847420).

Almost surely, 2^86615749 is an apocalyptic number.

It is an amenable number.

86615749 is a deficient number, since it is larger than the sum of its proper divisors (8163611).

86615749 is a wasteful number, since it uses less digits than its factorization.

86615749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24131.

The product of its digits is 362880, while the sum is 46.

The square root of 86615749 is about 9306.7582433412. The cubic root of 86615749 is about 442.4514490233.

The spelling of 86615749 in words is "eighty-six million, six hundred fifteen thousand, seven hundred forty-nine".