10057921 has 2 divisors, whose sum is σ = 10057922. Its totient is φ = 10057920.

The previous prime is 10057913. The next prime is 10057933. The reversal of 10057921 is 12975001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5456896 + 4601025 = 2336^2 + 2145^2 .

It is a cyclic number.

It is not a de Polignac number, because 10057921 - 2³ = 10057913 is a prime.

It is not a weakly prime, because it can be changed into another prime (10057951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028960 + 5028961.

It is an arithmetic number, because the mean of its divisors is an integer number (5028961).

Almost surely, 2^10057921 is an apocalyptic number.

It is an amenable number.

10057921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10057921 is an equidigital number, since it uses as much as digits as its factorization.

10057921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 10057921 is about 3171.4225514743. The cubic root of 10057921 is about 215.8586251954.

The spelling of 10057921 in words is "ten million, fifty-seven thousand, nine hundred twenty-one".