1982364931 has 4 divisors (see below), whose sum is σ = 1983384000. Its totient is φ = 1981345864.

The previous prime is 1982364899. The next prime is 1982364959. The reversal of 1982364931 is 1394632891.

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: 1394632891 = 26407 ⋅52813.

It is a cyclic number.

It is not a de Polignac number, because 1982364931 - 2⁵ = 1982364899 is a prime.

It is a super-2 number, since 2×1982364931² = 7859541439317269522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1982364991) 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, 506611 + ... + 510508.

It is an arithmetic number, because the mean of its divisors is an integer number (495846000).

Almost surely, 2^1982364931 is an apocalyptic number.

1982364931 is a deficient number, since it is larger than the sum of its proper divisors (1019069).

1982364931 is a wasteful number, since it uses less digits than its factorization.

1982364931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019068.

The product of its digits is 279936, while the sum is 46.

The square root of 1982364931 is about 44523.7569281839. The cubic root of 1982364931 is about 1256.2069796543.

The spelling of 1982364931 in words is "one billion, nine hundred eighty-two million, three hundred sixty-four thousand, nine hundred thirty-one".