1069490871 has 24 divisors (see below), whose sum is σ = 1612700544. Its totient is φ = 708247800.

The previous prime is 1069490843. The next prime is 1069490897. The reversal of 1069490871 is 1780949601.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1069490871 is a prime.

It is a super-2 number, since 2×1069490871² = 2287621446304677282, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1069490801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22120 + ... + 51266.

It is an arithmetic number, because the mean of its divisors is an integer number (67195856).

Almost surely, 2^1069490871 is an apocalyptic number.

1069490871 is a deficient number, since it is larger than the sum of its proper divisors (543209673).

1069490871 is an equidigital number, since it uses as much as digits as its factorization.

1069490871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29313 (or 29301 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1069490871 is about 32703.0712777867. The cubic root of 1069490871 is about 1022.6468711776.

The spelling of 1069490871 in words is "one billion, sixty-nine million, four hundred ninety thousand, eight hundred seventy-one".