7106640387 has 32 divisors (see below), whose sum is σ = 11821355520. Its totient is φ = 3689349120.

The previous prime is 7106640323. The next prime is 7106640397. The reversal of 7106640387 is 7830466017.

It is not a de Polignac number, because 7106640387 - 2⁶ = 7106640323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7106640397) 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 31 ways as a sum of consecutive naturals, for example, 376323 + ... + 394755.

It is an arithmetic number, because the mean of its divisors is an integer number (369417360).

Almost surely, 2^7106640387 is an apocalyptic number.

7106640387 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7106640387 is a deficient number, since it is larger than the sum of its proper divisors (4714715133).

7106640387 is a wasteful number, since it uses less digits than its factorization.

7106640387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20123.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 7106640387 is about 84300.8919703700. The cubic root of 7106640387 is about 1922.5963488481.

The spelling of 7106640387 in words is "seven billion, one hundred six million, six hundred forty thousand, three hundred eighty-seven".