90681363 has 10 divisors (see below), whose sum is σ = 135462404. Its totient is φ = 60454188.

The previous prime is 90681359. The next prime is 90681373. The reversal of 90681363 is 36318609.

It is a happy number.

It is not a de Polignac number, because 90681363 - 2² = 90681359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90681313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 559681 + ... + 559842.

Almost surely, 2^90681363 is an apocalyptic number.

90681363 is a deficient number, since it is larger than the sum of its proper divisors (44781041).

90681363 is a wasteful number, since it uses less digits than its factorization.

90681363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119535 (or 1119526 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 90681363 is about 9522.6762519787. The cubic root of 90681363 is about 449.2685450300.

The spelling of 90681363 in words is "ninety million, six hundred eighty-one thousand, three hundred sixty-three".