7420949487 has 16 divisors (see below), whose sum is σ = 12564570880. Its totient is φ = 4240542456.

The previous prime is 7420949483. The next prime is 7420949489. The reversal of 7420949487 is 7849490247.

It is a happy number.

7420949487 is a `hidden beast` number, since 74 + 2 + 0 + 9 + 494 + 87 = 666.

It is not a de Polignac number, because 7420949487 - 2² = 7420949483 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 (7420949483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19631953 + ... + 19632330.

It is an arithmetic number, because the mean of its divisors is an integer number (785285680).

Almost surely, 2^7420949487 is an apocalyptic number.

7420949487 is a deficient number, since it is larger than the sum of its proper divisors (5143621393).

7420949487 is a wasteful number, since it uses less digits than its factorization.

7420949487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39264299 (or 39264293 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 7420949487 is about 86144.9330314906. The cubic root of 7420949487 is about 1950.5323540613.

The spelling of 7420949487 in words is "seven billion, four hundred twenty million, nine hundred forty-nine thousand, four hundred eighty-seven".