628677087 has 4 divisors (see below), whose sum is σ = 838236120. Its totient is φ = 419118056.

The previous prime is 628677059. The next prime is 628677103. The reversal of 628677087 is 780776826.

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

It is a cyclic number.

It is not a de Polignac number, because 628677087 - 2¹¹ = 628675039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628677047) 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 3 ways as a sum of consecutive naturals, for example, 104779512 + ... + 104779517.

It is an arithmetic number, because the mean of its divisors is an integer number (209559030).

Almost surely, 2^628677087 is an apocalyptic number.

628677087 is a deficient number, since it is larger than the sum of its proper divisors (209559033).

628677087 is a wasteful number, since it uses less digits than its factorization.

628677087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209559032.

The product of its (nonzero) digits is 1580544, while the sum is 51.

The square root of 628677087 is about 25073.4338892781. The cubic root of 628677087 is about 856.6614238771.

The spelling of 628677087 in words is "six hundred twenty-eight million, six hundred seventy-seven thousand, eighty-seven".