672679620 has 192 divisors, whose sum is σ = 2238727680. Its totient is φ = 167270400.

The previous prime is 672679619. The next prime is 672679649. The reversal of 672679620 is 26976276.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 508560 + ... + 509880.

It is an arithmetic number, because the mean of its divisors is an integer number (11660040).

Almost surely, 2^672679620 is an apocalyptic number.

672679620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 672679620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1119363840).

672679620 is an abundant number, since it is smaller than the sum of its proper divisors (1566048060).

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

672679620 is a wasteful number, since it uses less digits than its factorization.

672679620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 1395 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 672679620 is about 25936.0679363700. The cubic root of 672679620 is about 876.1990071417.

The spelling of 672679620 in words is "six hundred seventy-two million, six hundred seventy-nine thousand, six hundred twenty".