1047900691 has 2 divisors, whose sum is σ = 1047900692. Its totient is φ = 1047900690.

The previous prime is 1047900671. The next prime is 1047900697. The reversal of 1047900691 is 1960097401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1047900691 - 2¹⁹ = 1047376403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1047900691.

It is not a weakly prime, because it can be changed into another prime (1047900697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 523950345 + 523950346.

It is an arithmetic number, because the mean of its divisors is an integer number (523950346).

Almost surely, 2^1047900691 is an apocalyptic number.

1047900691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1047900691 is an equidigital number, since it uses as much as digits as its factorization.

1047900691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 1047900691 is about 32371.2942435115. The cubic root of 1047900691 is about 1015.7185302689.

The spelling of 1047900691 in words is "one billion, forty-seven million, nine hundred thousand, six hundred ninety-one".