1930629897 has 48 divisors (see below), whose sum is σ = 3339469952. Its totient is φ = 1091750400.

The previous prime is 1930629863. The next prime is 1930629971. The reversal of 1930629897 is 7989260391.

1930629897 is a `hidden beast` number, since 1 + 9 + 3 + 0 + 629 + 8 + 9 + 7 = 666.

It is not a de Polignac number, because 1930629897 - 2⁸ = 1930629641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1930629817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 159147 + ... + 170847.

Almost surely, 2^1930629897 is an apocalyptic number.

It is an amenable number.

1930629897 is a deficient number, since it is larger than the sum of its proper divisors (1408840055).

1930629897 is an equidigital number, since it uses as much as digits as its factorization.

1930629897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11820 (or 11808 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 1930629897 is about 43938.9337262524. The cubic root of 1930629897 is about 1245.1825019150.

The spelling of 1930629897 in words is "one billion, nine hundred thirty million, six hundred twenty-nine thousand, eight hundred ninety-seven".