1021482979 has 16 divisors (see below), whose sum is σ = 1180902240. Its totient is φ = 874720000.

The previous prime is 1021482937. The next prime is 1021482983. The reversal of 1021482979 is 9792841201.

It is a happy number.

It is not a de Polignac number, because 1021482979 - 2¹¹ = 1021480931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021482379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25972 + ... + 52129.

It is an arithmetic number, because the mean of its divisors is an integer number (73806390).

Almost surely, 2^1021482979 is an apocalyptic number.

1021482979 is a deficient number, since it is larger than the sum of its proper divisors (159419261).

1021482979 is a wasteful number, since it uses less digits than its factorization.

1021482979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78182.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 1021482979 is about 31960.6473495141. The cubic root of 1021482979 is about 1007.1103165737.

The spelling of 1021482979 in words is "one billion, twenty-one million, four hundred eighty-two thousand, nine hundred seventy-nine".