90681927 has 64 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 44513280.

The previous prime is 90681917. The next prime is 90681947. The reversal of 90681927 is 72918609.

It is not a de Polignac number, because 90681927 - 2⁴ = 90681911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90681907) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 196477 + ... + 196937.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 2^90681927 is an apocalyptic number.

90681927 is a deficient number, since it is larger than the sum of its proper divisors (68985273).

90681927 is a wasteful number, since it uses less digits than its factorization.

90681927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 90681927 is about 9522.7058654565. The cubic root of 90681927 is about 449.2694764487.

The spelling of 90681927 in words is "ninety million, six hundred eighty-one thousand, nine hundred twenty-seven".