11429857 has 8 divisors (see below), whose sum is σ = 12113640. Its totient is φ = 10765440.

The previous prime is 11429819. The next prime is 11429861. The reversal of 11429857 is 75892411.

It can be written as a sum of positive squares in 4 ways, for example, as 2483776 + 8946081 = 1576^2 + 2991^2 .

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 11429857 - 2¹⁹ = 10905569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11429897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3618 + ... + 5995.

It is an arithmetic number, because the mean of its divisors is an integer number (1514205).

Almost surely, 2^11429857 is an apocalyptic number.

It is an amenable number.

11429857 is a deficient number, since it is larger than the sum of its proper divisors (683783).

11429857 is an equidigital number, since it uses as much as digits as its factorization.

11429857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9683.

The product of its digits is 20160, while the sum is 37.

The square root of 11429857 is about 3380.8071521458. The cubic root of 11429857 is about 225.2580216926.

The spelling of 11429857 in words is "eleven million, four hundred twenty-nine thousand, eight hundred fifty-seven".