1024073621 has 2 divisors, whose sum is σ = 1024073622. Its totient is φ = 1024073620.

The previous prime is 1024073581. The next prime is 1024073629. The reversal of 1024073621 is 1263704201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 553660900 + 470412721 = 23530^2 + 21689^2 .

It is an emirp because it is prime and its reverse (1263704201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1024073621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1024073629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512036810 + 512036811.

It is an arithmetic number, because the mean of its divisors is an integer number (512036811).

Almost surely, 2^1024073621 is an apocalyptic number.

It is an amenable number.

1024073621 is a deficient number, since it is larger than the sum of its proper divisors (1).

1024073621 is an equidigital number, since it uses as much as digits as its factorization.

1024073621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1024073621 is about 32001.1503074499. The cubic root of 1024073621 is about 1007.9609947140.

Adding to 1024073621 its reverse (1263704201), we get a palindrome (2287777822).

The spelling of 1024073621 in words is "one billion, twenty-four million, seventy-three thousand, six hundred twenty-one".