90986361 has 4 divisors (see below), whose sum is σ = 121315152. Its totient is φ = 60657572.

The previous prime is 90986359. The next prime is 90986393. The reversal of 90986361 is 16368909.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 90986361 - 2¹ = 90986359 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90986341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15164391 + ... + 15164396.

It is an arithmetic number, because the mean of its divisors is an integer number (30328788).

Almost surely, 2^90986361 is an apocalyptic number.

It is an amenable number.

90986361 is a deficient number, since it is larger than the sum of its proper divisors (30328791).

90986361 is a wasteful number, since it uses less digits than its factorization.

90986361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30328790.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 90986361 is about 9538.6771095367. The cubic root of 90986361 is about 449.7716718211.

The spelling of 90986361 in words is "ninety million, nine hundred eighty-six thousand, three hundred sixty-one".