7628247687 has 8 divisors (see below), whose sum is σ = 10407531904. Its totient is φ = 4967230968.

The previous prime is 7628247677. The next prime is 7628247707. The reversal of 7628247687 is 7867428267.

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

It is not a de Polignac number, because 7628247687 - 2⁷ = 7628247559 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 (7628247637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29566723 + ... + 29566980.

It is an arithmetic number, because the mean of its divisors is an integer number (1300941488).

Almost surely, 2^7628247687 is an apocalyptic number.

7628247687 is a deficient number, since it is larger than the sum of its proper divisors (2779284217).

7628247687 is a wasteful number, since it uses less digits than its factorization.

7628247687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59133749.

The product of its digits is 12644352, while the sum is 57.

The square root of 7628247687 is about 87339.8402048000. The cubic root of 7628247687 is about 1968.5279947439.

The spelling of 7628247687 in words is "seven billion, six hundred twenty-eight million, two hundred forty-seven thousand, six hundred eighty-seven".