90569101 has 12 divisors (see below), whose sum is σ = 109937952. Its totient is φ = 74254488.

The previous prime is 90569099. The next prime is 90569131. The reversal of 90569101 is 10196509.

It is not a de Polignac number, because 90569101 - 2¹ = 90569099 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 (90569131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39055 + ... + 41308.

It is an arithmetic number, because the mean of its divisors is an integer number (9161496).

Almost surely, 2^90569101 is an apocalyptic number.

It is an amenable number.

90569101 is a deficient number, since it is larger than the sum of its proper divisors (19368851).

90569101 is a wasteful number, since it uses less digits than its factorization.

90569101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80400 (or 80393 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 90569101 is about 9516.7799701370. The cubic root of 90569101 is about 449.0830728413.

The spelling of 90569101 in words is "ninety million, five hundred sixty-nine thousand, one hundred one".