628536537 has 8 divisors (see below), whose sum is σ = 931165280. Its totient is φ = 419024340.

The previous prime is 628536527. The next prime is 628536539. The reversal of 628536537 is 735635826.

628536537 is a `hidden beast` number, since 6 + 2 + 85 + 36 + 537 = 666.

It is not a de Polignac number, because 628536537 - 2¹⁴ = 628520153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 628536492 and 628536501.

It is not an unprimeable number, because it can be changed into a prime (628536539) 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 7 ways as a sum of consecutive naturals, for example, 11639539 + ... + 11639592.

It is an arithmetic number, because the mean of its divisors is an integer number (116395660).

Almost surely, 2^628536537 is an apocalyptic number.

It is an amenable number.

628536537 is a deficient number, since it is larger than the sum of its proper divisors (302628743).

628536537 is a wasteful number, since it uses less digits than its factorization.

628536537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23279140 (or 23279134 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 628536537 is about 25070.6309653347. The cubic root of 628536537 is about 856.5975793696.

The spelling of 628536537 in words is "six hundred twenty-eight million, five hundred thirty-six thousand, five hundred thirty-seven".