10257643 has 4 divisors (see below), whose sum is σ = 11190168. Its totient is φ = 9325120.

The previous prime is 10257631. The next prime is 10257649. The reversal of 10257643 is 34675201.

10257643 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10257643 - 2¹³ = 10249451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10257649) 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, 466246 + ... + 466267.

It is an arithmetic number, because the mean of its divisors is an integer number (2797542).

Almost surely, 2^10257643 is an apocalyptic number.

10257643 is a deficient number, since it is larger than the sum of its proper divisors (932525).

10257643 is an equidigital number, since it uses as much as digits as its factorization.

10257643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932524.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 10257643 is about 3202.7555323502. The cubic root of 10257643 is about 217.2780525360.

It can be divided in two parts, 1025 and 7643, that added together give a palindrome (8668).

The spelling of 10257643 in words is "ten million, two hundred fifty-seven thousand, six hundred forty-three".