1073721963 has 8 divisors (see below), whose sum is σ = 1435955776. Its totient is φ = 713651400.

The previous prime is 1073721937. The next prime is 1073722009. The reversal of 1073721963 is 3691273701.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1073721963 - 2²¹ = 1071624811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1073729963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539653 + ... + 541638.

It is an arithmetic number, because the mean of its divisors is an integer number (179494472).

Almost surely, 2^1073721963 is an apocalyptic number.

1073721963 is a deficient number, since it is larger than the sum of its proper divisors (362233813).

1073721963 is a wasteful number, since it uses less digits than its factorization.

1073721963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081625.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 1073721963 is about 32767.6969437890. The cubic root of 1073721963 is about 1023.9936863192.

The spelling of 1073721963 in words is "one billion, seventy-three million, seven hundred twenty-one thousand, nine hundred sixty-three".