90410421 has 8 divisors (see below), whose sum is σ = 122821920. Its totient is φ = 59136272.

The previous prime is 90410387. The next prime is 90410431. The reversal of 90410421 is 12401409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90410421 - 2¹⁴ = 90394037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90410431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284151 + ... + 284468.

It is an arithmetic number, because the mean of its divisors is an integer number (15352740).

Almost surely, 2^90410421 is an apocalyptic number.

It is an amenable number.

90410421 is a deficient number, since it is larger than the sum of its proper divisors (32411499).

90410421 is a wasteful number, since it uses less digits than its factorization.

90410421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568675.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 90410421 is about 9508.4394618675. The cubic root of 90410421 is about 448.8206501583.

It can be divided in two parts, 904 and 10421, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 90410421 in words is "ninety million, four hundred ten thousand, four hundred twenty-one".