1021960067 has 2 divisors, whose sum is σ = 1021960068. Its totient is φ = 1021960066.

The previous prime is 1021960061. The next prime is 1021960097. The reversal of 1021960067 is 7600691201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021960067 - 2¹² = 1021955971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021960061) by changing a digit.

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 as a sum of consecutive naturals, namely, 510980033 + 510980034.

It is an arithmetic number, because the mean of its divisors is an integer number (510980034).

Almost surely, 2^1021960067 is an apocalyptic number.

1021960067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021960067 is an equidigital number, since it uses as much as digits as its factorization.

1021960067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1021960067 is about 31968.1101568422. The cubic root of 1021960067 is about 1007.2670838988.

The spelling of 1021960067 in words is "one billion, twenty-one million, nine hundred sixty thousand, sixty-seven".