628745498 has 8 divisors (see below), whose sum is σ = 944116992. Its totient is φ = 314039836.

The previous prime is 628745449. The next prime is 628745521. The reversal of 628745498 is 894547826.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164090 + ... + 167877.

It is an arithmetic number, because the mean of its divisors is an integer number (118014624).

Almost surely, 2^628745498 is an apocalyptic number.

628745498 is a deficient number, since it is larger than the sum of its proper divisors (315371494).

628745498 is a wasteful number, since it uses less digits than its factorization.

628745498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332916.

The product of its digits is 3870720, while the sum is 53.

The square root of 628745498 is about 25074.7980649895. The cubic root of 628745498 is about 856.6924959703.

The spelling of 628745498 in words is "six hundred twenty-eight million, seven hundred forty-five thousand, four hundred ninety-eight".