1034267821 has 2 divisors, whose sum is σ = 1034267822. Its totient is φ = 1034267820.

The previous prime is 1034267813. The next prime is 1034267833. The reversal of 1034267821 is 1287624301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 768121225 + 266146596 = 27715^2 + 16314^2 .

It is an emirp because it is prime and its reverse (1287624301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1034267821 - 2³ = 1034267813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1034267851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 517133910 + 517133911.

It is an arithmetic number, because the mean of its divisors is an integer number (517133911).

Almost surely, 2^1034267821 is an apocalyptic number.

It is an amenable number.

1034267821 is a deficient number, since it is larger than the sum of its proper divisors (1).

1034267821 is an equidigital number, since it uses as much as digits as its factorization.

1034267821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1034267821 is about 32160.0345304541. The cubic root of 1034267821 is about 1011.2945596510.

The spelling of 1034267821 in words is "one billion, thirty-four million, two hundred sixty-seven thousand, eight hundred twenty-one".