670286990 has 32 divisors (see below), whose sum is σ = 1215777600. Its totient is φ = 266066944.

The previous prime is 670286977. The next prime is 670286993. The reversal of 670286990 is 99682076.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670286993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1118711 + ... + 1119309.

It is an arithmetic number, because the mean of its divisors is an integer number (37993050).

Almost surely, 2^670286990 is an apocalyptic number.

670286990 is a deficient number, since it is larger than the sum of its proper divisors (545490610).

670286990 is a wasteful number, since it uses less digits than its factorization.

670286990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 670286990 is about 25889.9013130603. The cubic root of 670286990 is about 875.1589327628.

The spelling of 670286990 in words is "six hundred seventy million, two hundred eighty-six thousand, nine hundred ninety".