921630082 has 4 divisors (see below), whose sum is σ = 1382445126. Its totient is φ = 460815040.

The previous prime is 921630071. The next prime is 921630119. The reversal of 921630082 is 280036129.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 280036129 = 14281 ⋅19609.

It can be written as a sum of positive squares in only one way, i.e., 903062601 + 18567481 = 30051^2 + 4309^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230407519 + ... + 230407522.

Almost surely, 2^921630082 is an apocalyptic number.

921630082 is a deficient number, since it is larger than the sum of its proper divisors (460815044).

921630082 is a wasteful number, since it uses less digits than its factorization.

921630082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460815043.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 921630082 is about 30358.3609900139. The cubic root of 921630082 is about 973.1629074173.

The spelling of 921630082 in words is "nine hundred twenty-one million, six hundred thirty thousand, eighty-two".