671862620 has 48 divisors (see below), whose sum is σ = 1657581408. Its totient is φ = 225519360.

The previous prime is 671862619. The next prime is 671862623. The reversal of 671862620 is 26268176.

It is a happy number.

671862620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671862623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114599 + ... + 120318.

It is an arithmetic number, because the mean of its divisors is an integer number (34532946).

Almost surely, 2^671862620 is an apocalyptic number.

It is an amenable number.

671862620 is an abundant number, since it is smaller than the sum of its proper divisors (985718788).

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

671862620 is a wasteful number, since it uses less digits than its factorization.

671862620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234950 (or 234948 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 671862620 is about 25920.3128839140. The cubic root of 671862620 is about 875.8441355823.

The spelling of 671862620 in words is "six hundred seventy-one million, eight hundred sixty-two thousand, six hundred twenty".