1072777969 has 2 divisors, whose sum is σ = 1072777970. Its totient is φ = 1072777968.

The previous prime is 1072777939. The next prime is 1072777991. The reversal of 1072777969 is 9697772701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 656128225 + 416649744 = 25615^2 + 20412^2 .

It is an emirp because it is prime and its reverse (9697772701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1072777969 - 2⁷ = 1072777841 is a prime.

It is a super-2 number, since 2×1072777969² = 2301705141543529922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1072777919) 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, 536388984 + 536388985.

It is an arithmetic number, because the mean of its divisors is an integer number (536388985).

Almost surely, 2^1072777969 is an apocalyptic number.

It is an amenable number.

1072777969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1072777969 is an equidigital number, since it uses as much as digits as its factorization.

1072777969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2333772, while the sum is 55.

The square root of 1072777969 is about 32753.2894378565. The cubic root of 1072777969 is about 1023.6935070201.

The spelling of 1072777969 in words is "one billion, seventy-two million, seven hundred seventy-seven thousand, nine hundred sixty-nine".