630573819 has 12 divisors (see below), whose sum is σ = 878911656. Its totient is φ = 402104032.

The previous prime is 630573799. The next prime is 630573833. The reversal of 630573819 is 918375036.

It is not a de Polignac number, because 630573819 - 2¹⁶ = 630508283 is a prime.

It is a super-2 number, since 2×630573819² = 795246682416489522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (630573899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197082 + ... + 200255.

It is an arithmetic number, because the mean of its divisors is an integer number (73242638).

Almost surely, 2^630573819 is an apocalyptic number.

630573819 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

630573819 is a deficient number, since it is larger than the sum of its proper divisors (248337837).

630573819 is a wasteful number, since it uses less digits than its factorization.

630573819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397386 (or 397363 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 630573819 is about 25111.2289424472. The cubic root of 630573819 is about 857.5220807637.

The spelling of 630573819 in words is "six hundred thirty million, five hundred seventy-three thousand, eight hundred nineteen".