8437603973 has 4 divisors (see below), whose sum is σ = 8440580940. Its totient is φ = 8434627008.

The previous prime is 8437603939. The next prime is 8437603991. The reversal of 8437603973 is 3793067348.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2591013604 + 5846590369 = 50902^2 + 76463^2 .

It is a cyclic number.

It is not a de Polignac number, because 8437603973 - 2¹⁴ = 8437587589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8437603903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484228 + ... + 1489901.

It is an arithmetic number, because the mean of its divisors is an integer number (2110145235).

Almost surely, 2^8437603973 is an apocalyptic number.

It is an amenable number.

8437603973 is a deficient number, since it is larger than the sum of its proper divisors (2976967).

8437603973 is a wasteful number, since it uses less digits than its factorization.

8437603973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976966.

The product of its (nonzero) digits is 2286144, while the sum is 50.

The square root of 8437603973 is about 91856.4313099524. The cubic root of 8437603973 is about 2035.8215746679.

The spelling of 8437603973 in words is "eight billion, four hundred thirty-seven million, six hundred three thousand, nine hundred seventy-three".