90368487 has 48 divisors (see below), whose sum is σ = 148960000. Its totient is φ = 54101520.

The previous prime is 90368483. The next prime is 90368507. The reversal of 90368487 is 78486309.

It is a happy number.

It is not a de Polignac number, because 90368487 - 2² = 90368483 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90368483) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 454014 + ... + 454212.

Almost surely, 2^90368487 is an apocalyptic number.

90368487 is a deficient number, since it is larger than the sum of its proper divisors (58591513).

90368487 is a wasteful number, since it uses less digits than its factorization.

90368487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 90368487 is about 9506.2341124128. The cubic root of 90368487 is about 448.7512490299.

The spelling of 90368487 in words is "ninety million, three hundred sixty-eight thousand, four hundred eighty-seven".