9773241421 has 4 divisors (see below), whose sum is σ = 9773455932. Its totient is φ = 9773026912.

The previous prime is 9773241419. The next prime is 9773241427. The reversal of 9773241421 is 1241423779.

It is a happy number.

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 9141272100 + 631969321 = 95610^2 + 25139^2 .

It is a cyclic number.

It is not a de Polignac number, because 9773241421 - 2¹ = 9773241419 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 (9773241427) 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, 8770 + ... + 140083.

It is an arithmetic number, because the mean of its divisors is an integer number (2443363983).

Almost surely, 2^9773241421 is an apocalyptic number.

It is an amenable number.

9773241421 is a deficient number, since it is larger than the sum of its proper divisors (214511).

9773241421 is a wasteful number, since it uses less digits than its factorization.

9773241421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214510.

The product of its digits is 84672, while the sum is 40.

The square root of 9773241421 is about 98859.7057501184. The cubic root of 9773241421 is about 2138.0254752042.

The spelling of 9773241421 in words is "nine billion, seven hundred seventy-three million, two hundred forty-one thousand, four hundred twenty-one".