10228739 has 4 divisors (see below), whose sum is σ = 10291656. Its totient is φ = 10165824.

The previous prime is 10228733. The next prime is 10228741. The reversal of 10228739 is 93782201.

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 10228739 - 2⁴ = 10228723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10228733) 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, 31214 + ... + 31539.

It is an arithmetic number, because the mean of its divisors is an integer number (2572914).

Almost surely, 2^10228739 is an apocalyptic number.

10228739 is a deficient number, since it is larger than the sum of its proper divisors (62917).

10228739 is an equidigital number, since it uses as much as digits as its factorization.

10228739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62916.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 10228739 is about 3198.2399847416. The cubic root of 10228739 is about 217.0737784199.

The spelling of 10228739 in words is "ten million, two hundred twenty-eight thousand, seven hundred thirty-nine".