2047345477 has 2 divisors, whose sum is σ = 2047345478. Its totient is φ = 2047345476.

The previous prime is 2047345471. The next prime is 2047345543. The reversal of 2047345477 is 7745437402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1070532961 + 976812516 = 32719^2 + 31254^2 .

It is a cyclic number.

It is not a de Polignac number, because 2047345477 - 2¹¹ = 2047343429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2047345471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1023672738 + 1023672739.

It is an arithmetic number, because the mean of its divisors is an integer number (1023672739).

Almost surely, 2^2047345477 is an apocalyptic number.

It is an amenable number.

2047345477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2047345477 is an equidigital number, since it uses as much as digits as its factorization.

2047345477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 658560, while the sum is 43.

The square root of 2047345477 is about 45247.6018922550. The cubic root of 2047345477 is about 1269.7855419388.

The spelling of 2047345477 in words is "two billion, forty-seven million, three hundred forty-five thousand, four hundred seventy-seven".