7408421773 has 4 divisors (see below), whose sum is σ = 7427969440. Its totient is φ = 7388874108.

The previous prime is 7408421771. The next prime is 7408421777. The reversal of 7408421773 is 3771248047.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7408421773 - 2¹ = 7408421771 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 (7408421771) 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, 9773265 + ... + 9774022.

It is an arithmetic number, because the mean of its divisors is an integer number (1856992360).

Almost surely, 2^7408421773 is an apocalyptic number.

It is an amenable number.

7408421773 is a deficient number, since it is larger than the sum of its proper divisors (19547667).

7408421773 is a wasteful number, since it uses less digits than its factorization.

7408421773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19547666.

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 7408421773 is about 86072.1893122279. The cubic root of 7408421773 is about 1949.4341354368.

The spelling of 7408421773 in words is "seven billion, four hundred eight million, four hundred twenty-one thousand, seven hundred seventy-three".