1630773967 has 4 divisors (see below), whose sum is σ = 1649097360. Its totient is φ = 1612450576.

The previous prime is 1630773959. The next prime is 1630773979. The reversal of 1630773967 is 7693770361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7693770361 = 467 ⋅16474883.

It is a cyclic number.

It is not a de Polignac number, because 1630773967 - 2³ = 1630773959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1630773967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1630773997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9161563 + ... + 9161740.

It is an arithmetic number, because the mean of its divisors is an integer number (412274340).

Almost surely, 2^1630773967 is an apocalyptic number.

1630773967 is a deficient number, since it is larger than the sum of its proper divisors (18323393).

1630773967 is an equidigital number, since it uses as much as digits as its factorization.

1630773967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18323392.

The product of its (nonzero) digits is 1000188, while the sum is 49.

The square root of 1630773967 is about 40382.8424829159. The cubic root of 1630773967 is about 1177.0581623703.

The spelling of 1630773967 in words is "one billion, six hundred thirty million, seven hundred seventy-three thousand, nine hundred sixty-seven".