6703951987 has 4 divisors (see below), whose sum is σ = 6704119120. Its totient is φ = 6703784856.

The previous prime is 6703951981. The next prime is 6703952093. The reversal of 6703951987 is 7891593076.

It is a semiprime because it is the product of two primes.

It is a 3-Lehmer number, since φ(6703951987) divides (6703951987-1)³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6703951987 is a prime.

It is a deceptive number, since it divides R_6703951986.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6703951981) 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 3 ways as a sum of consecutive naturals, for example, 16714 + ... + 116992.

It is an arithmetic number, because the mean of its divisors is an integer number (1676029780).

Almost surely, 2^6703951987 is an apocalyptic number.

6703951987 is the 66853-rd pentagonal number.

6703951987 is a deficient number, since it is larger than the sum of its proper divisors (167133).

6703951987 is a wasteful number, since it uses less digits than its factorization.

6703951987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167132.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The square root of 6703951987 is about 81877.6647627422. The cubic root of 6703951987 is about 1885.5742198703.

The spelling of 6703951987 in words is "six billion, seven hundred three million, nine hundred fifty-one thousand, nine hundred eighty-seven".