90611361 has 27 divisors (see below), whose sum is σ = 138966321. Its totient is φ = 56885544.

The previous prime is 90611359. The next prime is 90611393. The reversal of 90611361 is 16311609.

The square root of 90611361 is 9519.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 90611361 - 2¹ = 90611359 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (90611321) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 542500 + ... + 542666.

Almost surely, 2^90611361 is an apocalyptic number.

90611361 is the 9519-th square number.

90611361 is the 4760-th centered octagonal number.

It is an amenable number.

90611361 is a deficient number, since it is larger than the sum of its proper divisors (48354960).

90611361 is a wasteful number, since it uses less digits than its factorization.

90611361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The cubic root of 90611361 is about 449.1529101237.

The spelling of 90611361 in words is "ninety million, six hundred eleven thousand, three hundred sixty-one".