1047257671 has 4 divisors (see below), whose sum is σ = 1056525552. Its totient is φ = 1037989792.

The previous prime is 1047257663. The next prime is 1047257683. The reversal of 1047257671 is 1767527401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1767527401 = 1129 ⋅1565569.

It is a cyclic number.

It is not a de Polignac number, because 1047257671 - 2³ = 1047257663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047257641) 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, 4633771 + ... + 4633996.

It is an arithmetic number, because the mean of its divisors is an integer number (264131388).

Almost surely, 2^1047257671 is an apocalyptic number.

1047257671 is a deficient number, since it is larger than the sum of its proper divisors (9267881).

1047257671 is an equidigital number, since it uses as much as digits as its factorization.

1047257671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9267880.

The product of its (nonzero) digits is 82320, while the sum is 40.

The square root of 1047257671 is about 32361.3607717599. The cubic root of 1047257671 is about 1015.5107303719.

The spelling of 1047257671 in words is "one billion, forty-seven million, two hundred fifty-seven thousand, six hundred seventy-one".