1052697909 has 8 divisors (see below), whose sum is σ = 1406840512. Its totient is φ = 700176960.

The previous prime is 1052697871. The next prime is 1052697913. The reversal of 1052697909 is 9097962501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1052697909 - 2¹³ = 1052689717 is a prime.

It is a super-2 number, since 2×1052697909² = 2216345775225944562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1052697929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403897 + ... + 406494.

It is an arithmetic number, because the mean of its divisors is an integer number (175855064).

Almost surely, 2^1052697909 is an apocalyptic number.

It is an amenable number.

1052697909 is a deficient number, since it is larger than the sum of its proper divisors (354142603).

1052697909 is an equidigital number, since it uses as much as digits as its factorization.

1052697909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810827.

The product of its (nonzero) digits is 306180, while the sum is 48.

The square root of 1052697909 is about 32445.3064248128. The cubic root of 1052697909 is about 1017.2661344770.

The spelling of 1052697909 in words is "one billion, fifty-two million, six hundred ninety-seven thousand, nine hundred nine".