675640770 has 32 divisors (see below), whose sum is σ = 1853186688. Its totient is φ = 154432128.

The previous prime is 675640739. The next prime is 675640783. The reversal of 675640770 is 77046576.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 1608459 + ... + 1608878.

It is an arithmetic number, because the mean of its divisors is an integer number (57912084).

Almost surely, 2^675640770 is an apocalyptic number.

675640770 is an abundant number, since it is smaller than the sum of its proper divisors (1177545918).

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

675640770 is a wasteful number, since it uses less digits than its factorization.

675640770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217354.

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 675640770 is about 25993.0908127525. The cubic root of 675640770 is about 877.4828074326.

The spelling of 675640770 in words is "six hundred seventy-five million, six hundred forty thousand, seven hundred seventy".