1906484869 has 2 divisors, whose sum is σ = 1906484870. Its totient is φ = 1906484868.

The previous prime is 1906484813. The next prime is 1906484897. The reversal of 1906484869 is 9684846091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 969512769 + 936972100 = 31137^2 + 30610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1906484869 - 2¹⁵ = 1906452101 is a prime.

It is a super-2 number, since 2×1906484869² = 7269369111451894322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1906482869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 953242434 + 953242435.

It is an arithmetic number, because the mean of its divisors is an integer number (953242435).

Almost surely, 2^1906484869 is an apocalyptic number.

It is an amenable number.

1906484869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1906484869 is an equidigital number, since it uses as much as digits as its factorization.

1906484869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 1906484869 is about 43663.3126205514. The cubic root of 1906484869 is about 1239.9698373256.

The spelling of 1906484869 in words is "one billion, nine hundred six million, four hundred eighty-four thousand, eight hundred sixty-nine".