1934699489 has 2 divisors, whose sum is σ = 1934699490. Its totient is φ = 1934699488.

The previous prime is 1934699471. The next prime is 1934699497. The reversal of 1934699489 is 9849964391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1672810000 + 261889489 = 40900^2 + 16183^2 .

It is a cyclic number.

It is not a de Polignac number, because 1934699489 - 2⁸ = 1934699233 is a prime.

It is a super-2 number, since 2×1934699489² = 7486124225473722242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1934699419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 967349744 + 967349745.

It is an arithmetic number, because the mean of its divisors is an integer number (967349745).

Almost surely, 2^1934699489 is an apocalyptic number.

It is an amenable number.

1934699489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1934699489 is an equidigital number, since it uses as much as digits as its factorization.

1934699489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15116544, while the sum is 62.

The square root of 1934699489 is about 43985.2189831993. The cubic root of 1934699489 is about 1246.0567983284.

The spelling of 1934699489 in words is "one billion, nine hundred thirty-four million, six hundred ninety-nine thousand, four hundred eighty-nine".