628074697 has 16 divisors (see below), whose sum is σ = 670432000. Its totient is φ = 586710864.

The previous prime is 628074649. The next prime is 628074737. The reversal of 628074697 is 796470826.

It is a cyclic number.

It is not a de Polignac number, because 628074697 - 2¹⁵ = 628041929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 628074697.

It is not an unprimeable number, because it can be changed into a prime (628074637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429754 + ... + 431212.

It is an arithmetic number, because the mean of its divisors is an integer number (41902000).

Almost surely, 2^628074697 is an apocalyptic number.

It is an amenable number.

628074697 is a deficient number, since it is larger than the sum of its proper divisors (42357303).

628074697 is a wasteful number, since it uses less digits than its factorization.

628074697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 628074697 is about 25061.4184953685. The cubic root of 628074697 is about 856.3877225892.

The spelling of 628074697 in words is "six hundred twenty-eight million, seventy-four thousand, six hundred ninety-seven".