628673958 has 24 divisors (see below), whose sum is σ = 1485957096. Its totient is φ = 190507200.

The previous prime is 628673953. The next prime is 628673963. The reversal of 628673958 is 859376826.

It is a happy number.

628673958 is a `hidden beast` number, since 628 + 6 + 7 + 3 + 9 + 5 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (628673953) and next prime (628673963).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628673953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1587363 + ... + 1587758.

It is an arithmetic number, because the mean of its divisors is an integer number (61914879).

Almost surely, 2^628673958 is an apocalyptic number.

628673958 is an abundant number, since it is smaller than the sum of its proper divisors (857283138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628673958 is a wasteful number, since it uses less digits than its factorization.

628673958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175140 (or 3175137 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 628673958 is about 25073.3714924818. The cubic root of 628673958 is about 856.6600026398.

The spelling of 628673958 in words is "six hundred twenty-eight million, six hundred seventy-three thousand, nine hundred fifty-eight".