1047498391 has 2 divisors, whose sum is σ = 1047498392. Its totient is φ = 1047498390.

The previous prime is 1047498343. The next prime is 1047498409. The reversal of 1047498391 is 1938947401.

It is a strong prime.

It is an emirp because it is prime and its reverse (1938947401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1047498391 - 2⁹ = 1047497879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047498341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523749195 + 523749196.

It is an arithmetic number, because the mean of its divisors is an integer number (523749196).

Almost surely, 2^1047498391 is an apocalyptic number.

1047498391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047498391 is an equidigital number, since it uses as much as digits as its factorization.

1047498391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1047498391 is about 32365.0798083366. The cubic root of 1047498391 is about 1015.5885319873.

The spelling of 1047498391 in words is "one billion, forty-seven million, four hundred ninety-eight thousand, three hundred ninety-one".