1048447857 has 8 divisors (see below), whose sum is σ = 1413637920. Its totient is φ = 691111520.

The previous prime is 1048447843. The next prime is 1048447879. The reversal of 1048447857 is 7587448401.

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 1048447857 - 2¹⁸ = 1048185713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1048447837) 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, 1963119 + ... + 1963652.

It is an arithmetic number, because the mean of its divisors is an integer number (176704740).

Almost surely, 2^1048447857 is an apocalyptic number.

It is an amenable number.

1048447857 is a deficient number, since it is larger than the sum of its proper divisors (365190063).

1048447857 is an equidigital number, since it uses as much as digits as its factorization.

1048447857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3926863.

The product of its (nonzero) digits is 1003520, while the sum is 48.

The square root of 1048447857 is about 32379.7445480967. The cubic root of 1048447857 is about 1015.8952868217.

The spelling of 1048447857 in words is "one billion, forty-eight million, four hundred forty-seven thousand, eight hundred fifty-seven".