1072871977 has 2 divisors, whose sum is σ = 1072871978. Its totient is φ = 1072871976.

The previous prime is 1072871959. The next prime is 1072872011. The reversal of 1072871977 is 7791782701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 691216681 + 381655296 = 26291^2 + 19536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1072871977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1072871977.

It is not a weakly prime, because it can be changed into another prime (1072871077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536435988 + 536435989.

It is an arithmetic number, because the mean of its divisors is an integer number (536435989).

Almost surely, 2^1072871977 is an apocalyptic number.

It is an amenable number.

1072871977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072871977 is an equidigital number, since it uses as much as digits as its factorization.

1072871977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345744, while the sum is 49.

The square root of 1072871977 is about 32754.7244989177. The cubic root of 1072871977 is about 1023.7234083825.

The spelling of 1072871977 in words is "one billion, seventy-two million, eight hundred seventy-one thousand, nine hundred seventy-seven".