1080409669 has 2 divisors, whose sum is σ = 1080409670. Its totient is φ = 1080409668.

The previous prime is 1080409667. The next prime is 1080409699. The reversal of 1080409669 is 9669040801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 607869025 + 472540644 = 24655^2 + 21738^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080409669 - 2¹ = 1080409667 is a prime.

It is a super-2 number, since 2×1080409669² = 2334570105737379122, which contains 22 as substring.

Together with 1080409667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1080409667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540204834 + 540204835.

It is an arithmetic number, because the mean of its divisors is an integer number (540204835).

Almost surely, 2^1080409669 is an apocalyptic number.

It is an amenable number.

1080409669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1080409669 is an equidigital number, since it uses as much as digits as its factorization.

1080409669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 1080409669 is about 32869.5857746945. The cubic root of 1080409669 is about 1026.1152782986.

The spelling of 1080409669 in words is "one billion, eighty million, four hundred nine thousand, six hundred sixty-nine".