9054821 has 4 divisors (see below), whose sum is σ = 9346944. Its totient is φ = 8762700.

The previous prime is 9054797. The next prime is 9054839. The reversal of 9054821 is 1284509.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1284509 = 839 ⋅1531.

It is a cyclic number.

It is not a de Polignac number, because 9054821 - 2¹⁰ = 9053797 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 (9254821) 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, 146015 + ... + 146076.

It is an arithmetic number, because the mean of its divisors is an integer number (2336736).

Almost surely, 2^9054821 is an apocalyptic number.

It is an amenable number.

9054821 is a deficient number, since it is larger than the sum of its proper divisors (292123).

9054821 is a wasteful number, since it uses less digits than its factorization.

9054821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292122.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 9054821 is about 3009.1229619276. The cubic root of 9054821 is about 208.4298694297.

The spelling of 9054821 in words is "nine million, fifty-four thousand, eight hundred twenty-one".