628169017 has 8 divisors (see below), whose sum is σ = 737310656. Its totient is φ = 523878192.

The previous prime is 628168999. The next prime is 628169041. The reversal of 628169017 is 710961826.

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

It is a cyclic number.

It is not a de Polignac number, because 628169017 - 2⁷ = 628168889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628169117) 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, 1212423 + ... + 1212940.

It is an arithmetic number, because the mean of its divisors is an integer number (92163832).

Almost surely, 2^628169017 is an apocalyptic number.

It is an amenable number.

628169017 is a deficient number, since it is larger than the sum of its proper divisors (109141639).

628169017 is a wasteful number, since it uses less digits than its factorization.

628169017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425407.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 628169017 is about 25063.3002016893. The cubic root of 628169017 is about 856.4305892776.

The spelling of 628169017 in words is "six hundred twenty-eight million, one hundred sixty-nine thousand, seventeen".