10427521 has 8 divisors (see below), whose sum is σ = 11254824. Its totient is φ = 9603840.

The previous prime is 10427513. The next prime is 10427537. The reversal of 10427521 is 12572401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1185921 + 9241600 = 1089^2 + 3040^2 .

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 10427521 - 2³ = 10427513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10427492 and 10427501.

It is not an unprimeable number, because it can be changed into a prime (10427551) 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 in 7 ways as a sum of consecutive naturals, for example, 10185 + ... + 11161.

It is an arithmetic number, because the mean of its divisors is an integer number (1406853).

Almost surely, 2^10427521 is an apocalyptic number.

It is an amenable number.

10427521 is a deficient number, since it is larger than the sum of its proper divisors (827303).

10427521 is an equidigital number, since it uses as much as digits as its factorization.

10427521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 10427521 is about 3229.1672301075. The cubic root of 10427521 is about 218.4709469197.

Adding to 10427521 its reverse (12572401), we get a palindrome (22999922).

The spelling of 10427521 in words is "ten million, four hundred twenty-seven thousand, five hundred twenty-one".