90986847 has 8 divisors (see below), whose sum is σ = 138646656. Its totient is φ = 51992472.

The previous prime is 90986843. The next prime is 90986851. The reversal of 90986847 is 74868909.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (90986843) and next prime (90986851).

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

It is not a de Polignac number, because 90986847 - 2² = 90986843 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90986847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90986843) 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, 2166333 + ... + 2166374.

It is an arithmetic number, because the mean of its divisors is an integer number (17330832).

Almost surely, 2^90986847 is an apocalyptic number.

90986847 is a deficient number, since it is larger than the sum of its proper divisors (47659809).

90986847 is a wasteful number, since it uses less digits than its factorization.

90986847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332717.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 90986847 is about 9538.7025847334. The cubic root of 90986847 is about 449.7724726321.

The spelling of 90986847 in words is "ninety million, nine hundred eighty-six thousand, eight hundred forty-seven".