7420899493 has 8 divisors (see below), whose sum is σ = 8481586688. Its totient is φ = 6360351984.

The previous prime is 7420899467. The next prime is 7420899511. The reversal of 7420899493 is 3949980247.

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

It is not a de Polignac number, because 7420899493 - 2⁹ = 7420898981 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 (7420899403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132355 + ... + 179887.

It is an arithmetic number, because the mean of its divisors is an integer number (1060198336).

Almost surely, 2^7420899493 is an apocalyptic number.

It is an amenable number.

7420899493 is a deficient number, since it is larger than the sum of its proper divisors (1060687195).

7420899493 is a wasteful number, since it uses less digits than its factorization.

7420899493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69843.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The square root of 7420899493 is about 86144.6428572317. The cubic root of 7420899493 is about 1950.5279738880.

The spelling of 7420899493 in words is "seven billion, four hundred twenty million, eight hundred ninety-nine thousand, four hundred ninety-three".