90647167 has 4 divisors (see below), whose sum is σ = 97620040. Its totient is φ = 83674296.

The previous prime is 90647149. The next prime is 90647171. The reversal of 90647167 is 76174609.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76174609 = 7 ⋅10882087.

It is a cyclic number.

It is not a de Polignac number, because 90647167 - 2¹¹ = 90645119 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 (90647177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3486417 + ... + 3486442.

It is an arithmetic number, because the mean of its divisors is an integer number (24405010).

Almost surely, 2^90647167 is an apocalyptic number.

90647167 is a deficient number, since it is larger than the sum of its proper divisors (6972873).

90647167 is a wasteful number, since it uses less digits than its factorization.

90647167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6972872.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 90647167 is about 9520.8805790221. The cubic root of 90647167 is about 449.2120647779.

The spelling of 90647167 in words is "ninety million, six hundred forty-seven thousand, one hundred sixty-seven".