1069800731 has 4 divisors (see below), whose sum is σ = 1104310464. Its totient is φ = 1035291000.

The previous prime is 1069800703. The next prime is 1069800733. The reversal of 1069800731 is 1370089601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1069800731 - 2²⁶ = 1002691867 is a prime.

It is a super-2 number, since 2×1069800731² = 2288947208096268722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1069800691 and 1069800700.

It is not an unprimeable number, because it can be changed into a prime (1069800733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17254820 + ... + 17254881.

It is an arithmetic number, because the mean of its divisors is an integer number (276077616).

Almost surely, 2^1069800731 is an apocalyptic number.

1069800731 is a deficient number, since it is larger than the sum of its proper divisors (34509733).

1069800731 is an equidigital number, since it uses as much as digits as its factorization.

1069800731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34509732.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1069800731 is about 32707.8084102252. The cubic root of 1069800731 is about 1022.7456243228.

The spelling of 1069800731 in words is "one billion, sixty-nine million, eight hundred thousand, seven hundred thirty-one".