1021967970 has 32 divisors (see below), whose sum is σ = 2559364992. Its totient is φ = 260675712.

The previous prime is 1021967959. The next prime is 1021967981. The reversal of 1021967970 is 797691201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1021967959) and next prime (1021967981).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739867 + ... + 741246.

It is an arithmetic number, because the mean of its divisors is an integer number (79980156).

Almost surely, 2^1021967970 is an apocalyptic number.

1021967970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1021967970 is an abundant number, since it is smaller than the sum of its proper divisors (1537397022).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021967970 is a wasteful number, since it uses less digits than its factorization.

1021967970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481146.

The product of its (nonzero) digits is 47628, while the sum is 42.

The square root of 1021967970 is about 31968.2337641603. The cubic root of 1021967970 is about 1007.2696803510.

The spelling of 1021967970 in words is "one billion, twenty-one million, nine hundred sixty-seven thousand, nine hundred seventy".