673856630 has 16 divisors (see below), whose sum is σ = 1232827344. Its totient is φ = 265123680.

The previous prime is 673856627. The next prime is 673856633. The reversal of 673856630 is 36658376.

It is an interprime number because it is at equal distance from previous prime (673856627) and next prime (673856633).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673856633) 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, 551732 + ... + 552951.

It is an arithmetic number, because the mean of its divisors is an integer number (77051709).

Almost surely, 2^673856630 is an apocalyptic number.

673856630 is a deficient number, since it is larger than the sum of its proper divisors (558970714).

673856630 is a wasteful number, since it uses less digits than its factorization.

673856630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104751.

The product of its (nonzero) digits is 544320, while the sum is 44.

The square root of 673856630 is about 25958.7486216112. The cubic root of 673856630 is about 876.7097475941.

The spelling of 673856630 in words is "six hundred seventy-three million, eight hundred fifty-six thousand, six hundred thirty".