7706420407 has 8 divisors (see below), whose sum is σ = 8840080800. Its totient is φ = 6580945824.

The previous prime is 7706420383. The next prime is 7706420413. The reversal of 7706420407 is 7040246077.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7706420407 - 2⁷ = 7706420279 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 (7706420497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2044432 + ... + 2048197.

It is an arithmetic number, because the mean of its divisors is an integer number (1105010100).

Almost surely, 2^7706420407 is an apocalyptic number.

7706420407 is a deficient number, since it is larger than the sum of its proper divisors (1133660393).

7706420407 is a wasteful number, since it uses less digits than its factorization.

7706420407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092905.

The product of its (nonzero) digits is 65856, while the sum is 37.

The square root of 7706420407 is about 87786.2199152008. The cubic root of 7706420407 is about 1975.2295119273.

The spelling of 7706420407 in words is "seven billion, seven hundred six million, four hundred twenty thousand, four hundred seven".