90889267 has 6 divisors (see below), whose sum is σ = 105728388. Its totient is φ = 77905044.

The previous prime is 90889247. The next prime is 90889343. The reversal of 90889267 is 76298809.

It is a happy number.

It is not a de Polignac number, because 90889267 - 2²³ = 82500659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49), and also a Moran number because the ratio is a prime number: 1854883 = 90889267 / (9 + 0 + 8 + 8 + 9 + 2 + 6 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90889267.

It is not an unprimeable number, because it can be changed into a prime (90889247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 927393 + ... + 927490.

It is an arithmetic number, because the mean of its divisors is an integer number (17621398).

Almost surely, 2^90889267 is an apocalyptic number.

90889267 is a deficient number, since it is larger than the sum of its proper divisors (14839121).

90889267 is a wasteful number, since it uses less digits than its factorization.

90889267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854897 (or 1854890 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 90889267 is about 9533.5862612136. The cubic root of 90889267 is about 449.6116270507.

The spelling of 90889267 in words is "ninety million, eight hundred eighty-nine thousand, two hundred sixty-seven".