90036461 has 4 divisors (see below), whose sum is σ = 90395424. Its totient is φ = 89677500.

The previous prime is 90036439. The next prime is 90036469. The reversal of 90036461 is 16463009.

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 a de Polignac number, because none of the positive numbers 2^k-90036461 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90036469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179105 + ... + 179606.

It is an arithmetic number, because the mean of its divisors is an integer number (22598856).

Almost surely, 2^90036461 is an apocalyptic number.

90036461 is the 4244-th centered decagonal number.

It is an amenable number.

90036461 is a deficient number, since it is larger than the sum of its proper divisors (358963).

90036461 is a wasteful number, since it uses less digits than its factorization.

90036461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358962.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 90036461 is about 9488.7544493469. The cubic root of 90036461 is about 448.2009837069.

The spelling of 90036461 in words is "ninety million, thirty-six thousand, four hundred sixty-one".