1047048391 has 2 divisors, whose sum is σ = 1047048392. Its totient is φ = 1047048390.

The previous prime is 1047048307. The next prime is 1047048433. The reversal of 1047048391 is 1938407401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1047048391 - 2¹³ = 1047040199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1047048391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1047048491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523524195 + 523524196.

It is an arithmetic number, because the mean of its divisors is an integer number (523524196).

Almost surely, 2^1047048391 is an apocalyptic number.

1047048391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047048391 is an equidigital number, since it uses as much as digits as its factorization.

1047048391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1047048391 is about 32358.1271244181. The cubic root of 1047048391 is about 1015.4430805948.

The spelling of 1047048391 in words is "one billion, forty-seven million, forty-eight thousand, three hundred ninety-one".