676720890 has 24 divisors (see below), whose sum is σ = 1759474548. Its totient is φ = 180458880.

The previous prime is 676720883. The next prime is 676720931. The reversal of 676720890 is 98027676.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 675428121 + 1292769 = 25989^2 + 1137^2 .

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 11 ways as a sum of consecutive naturals, for example, 3759471 + ... + 3759650.

Almost surely, 2^676720890 is an apocalyptic number.

676720890 is an abundant number, since it is smaller than the sum of its proper divisors (1082753658).

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

676720890 is a wasteful number, since it uses less digits than its factorization.

676720890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519134 (or 7519131 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 676720890 is about 26013.8595752341. The cubic root of 676720890 is about 877.9501574195.

The spelling of 676720890 in words is "six hundred seventy-six million, seven hundred twenty thousand, eight hundred ninety".