1072739977 has 2 divisors, whose sum is σ = 1072739978. Its totient is φ = 1072739976.

The previous prime is 1072739971. The next prime is 1072740013. The reversal of 1072739977 is 7799372701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1064651641 + 8088336 = 32629^2 + 2844^2 .

It is an emirp because it is prime and its reverse (7799372701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1072739977 - 2¹⁹ = 1072215689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1072739971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536369988 + 536369989.

It is an arithmetic number, because the mean of its divisors is an integer number (536369989).

Almost surely, 2^1072739977 is an apocalyptic number.

It is an amenable number.

1072739977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072739977 is an equidigital number, since it uses as much as digits as its factorization.

1072739977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166886, while the sum is 52.

The square root of 1072739977 is about 32752.7094604401. The cubic root of 1072739977 is about 1023.6814223130.

The spelling of 1072739977 in words is "one billion, seventy-two million, seven hundred thirty-nine thousand, nine hundred seventy-seven".