90826421 has 8 divisors (see below), whose sum is σ = 104346624. Its totient is φ = 77442480.

The previous prime is 90826399. The next prime is 90826433. The reversal of 90826421 is 12462809.

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 90826421 - 2¹⁴ = 90810037 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 (90826481) 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, 32630 + ... + 35303.

It is an arithmetic number, because the mean of its divisors is an integer number (13043328).

Almost surely, 2^90826421 is an apocalyptic number.

It is an amenable number.

90826421 is a deficient number, since it is larger than the sum of its proper divisors (13520203).

90826421 is a wasteful number, since it uses less digits than its factorization.

90826421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68131.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 90826421 is about 9530.2896598162. The cubic root of 90826421 is about 449.5079741537.

The spelling of 90826421 in words is "ninety million, eight hundred twenty-six thousand, four hundred twenty-one".