676621512 has 160 divisors (see below), whose sum is σ = 2216913600. Its totient is φ = 188770176.

The previous prime is 676621489. The next prime is 676621537. The reversal of 676621512 is 215126676.

It is a happy number.

676621512 is a `hidden beast` number, since 67 + 66 + 21 + 512 = 666.

It is a super-2 number, since 2×676621512² = 915633341002332288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 193314 + ... + 196782.

It is an arithmetic number, because the mean of its divisors is an integer number (13855710).

Almost surely, 2^676621512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 676621512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108456800).

676621512 is an abundant number, since it is smaller than the sum of its proper divisors (1540292088).

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

676621512 is a wasteful number, since it uses less digits than its factorization.

676621512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537 (or 3524 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 676621512 is about 26011.9494079164. The cubic root of 676621512 is about 877.9071789906.

The spelling of 676621512 in words is "six hundred seventy-six million, six hundred twenty-one thousand, five hundred twelve".