86746637 has 4 divisors (see below), whose sum is σ = 88383420. Its totient is φ = 85109856.

The previous prime is 86746633. The next prime is 86746663. The reversal of 86746637 is 73664768.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32959081 + 53787556 = 5741^2 + 7334^2 .

It is a cyclic number.

It is not a de Polignac number, because 86746637 - 2² = 86746633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86746591 and 86746600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86746633) 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 3 ways as a sum of consecutive naturals, for example, 818312 + ... + 818417.

It is an arithmetic number, because the mean of its divisors is an integer number (22095855).

Almost surely, 2^86746637 is an apocalyptic number.

It is an amenable number.

86746637 is a deficient number, since it is larger than the sum of its proper divisors (1636783).

86746637 is a wasteful number, since it uses less digits than its factorization.

86746637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636782.

The product of its digits is 1016064, while the sum is 47.

The square root of 86746637 is about 9313.7874680497. The cubic root of 86746637 is about 442.6742046602.

The spelling of 86746637 in words is "eighty-six million, seven hundred forty-six thousand, six hundred thirty-seven".