628023579 has 8 divisors (see below), whose sum is σ = 873772032. Its totient is φ = 400478760.

The previous prime is 628023577. The next prime is 628023581. The reversal of 628023579 is 975320826.

It is an interprime number because it is at equal distance from previous prime (628023577) and next prime (628023581).

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

It is not a de Polignac number, because 628023579 - 2¹ = 628023577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628023579.

It is not an unprimeable number, because it can be changed into a prime (628023577) 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, 4550827 + ... + 4550964.

It is an arithmetic number, because the mean of its divisors is an integer number (109221504).

Almost surely, 2^628023579 is an apocalyptic number.

628023579 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

628023579 is a deficient number, since it is larger than the sum of its proper divisors (245748453).

628023579 is a wasteful number, since it uses less digits than its factorization.

628023579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9101817.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 628023579 is about 25060.3986201337. The cubic root of 628023579 is about 856.3644886143.

The spelling of 628023579 in words is "six hundred twenty-eight million, twenty-three thousand, five hundred seventy-nine".