1908532969 has 4 divisors (see below), whose sum is σ = 2181180544. Its totient is φ = 1635885396.

The previous prime is 1908532937. The next prime is 1908532973. The reversal of 1908532969 is 9692358091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1908532969 - 2⁵ = 1908532937 is a prime.

It is a super-2 number, since 2×1908532969² = 7284996187519909922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1908532169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136323777 + ... + 136323790.

It is an arithmetic number, because the mean of its divisors is an integer number (545295136).

Almost surely, 2^1908532969 is an apocalyptic number.

It is an amenable number.

1908532969 is a deficient number, since it is larger than the sum of its proper divisors (272647575).

1908532969 is an equidigital number, since it uses as much as digits as its factorization.

1908532969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272647574.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The square root of 1908532969 is about 43686.7596532405. The cubic root of 1908532969 is about 1240.4137036612.

The spelling of 1908532969 in words is "one billion, nine hundred eight million, five hundred thirty-two thousand, nine hundred sixty-nine".