670761090 has 24 divisors (see below), whose sum is σ = 1743979068. Its totient is φ = 178869600.

The previous prime is 670761083. The next prime is 670761127. The reversal of 670761090 is 90167076.

It can be written as a sum of positive squares in 2 ways, for example, as 603832329 + 66928761 = 24573^2 + 8181^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3726361 + ... + 3726540.

Almost surely, 2^670761090 is an apocalyptic number.

670761090 is an abundant number, since it is smaller than the sum of its proper divisors (1073217978).

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

670761090 is a wasteful number, since it uses less digits than its factorization.

670761090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7452914 (or 7452911 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 670761090 is about 25899.0557742942. The cubic root of 670761090 is about 875.3652200550.

It can be divided in two parts, 6707610 and 90, that multiplied together give a square (603684900 = 24570²).

The spelling of 670761090 in words is "six hundred seventy million, seven hundred sixty-one thousand, ninety".