90106797 has 16 divisors (see below), whose sum is σ = 137963520. Its totient is φ = 51735600.

The previous prime is 90106789. The next prime is 90106811. The reversal of 90106797 is 79760109.

It is not a de Polignac number, because 90106797 - 2³ = 90106789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90106717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71229 + ... + 72482.

It is an arithmetic number, because the mean of its divisors is an integer number (8622720).

Almost surely, 2^90106797 is an apocalyptic number.

It is an amenable number.

90106797 is a deficient number, since it is larger than the sum of its proper divisors (47856723).

90106797 is a wasteful number, since it uses less digits than its factorization.

90106797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143744.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 90106797 is about 9492.4600078167. The cubic root of 90106797 is about 448.3176640630.

The spelling of 90106797 in words is "ninety million, one hundred six thousand, seven hundred ninety-seven".