90267487 has 4 divisors (see below), whose sum is σ = 90289080. Its totient is φ = 90245896.

The previous prime is 90267481. The next prime is 90267491. The reversal of 90267487 is 78476209.

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

It is a cyclic number.

It is not a de Polignac number, because 90267487 - 2¹⁵ = 90234719 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 (90267481) 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, 2293 + ... + 13630.

It is an arithmetic number, because the mean of its divisors is an integer number (22572270).

Almost surely, 2^90267487 is an apocalyptic number.

90267487 is a deficient number, since it is larger than the sum of its proper divisors (21593).

90267487 is a wasteful number, since it uses less digits than its factorization.

90267487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21592.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 90267487 is about 9500.9203238423. The cubic root of 90267487 is about 448.5840049920.

The spelling of 90267487 in words is "ninety million, two hundred sixty-seven thousand, four hundred eighty-seven".