675908730 has 144 divisors (see below), whose sum is σ = 2047368960. Its totient is φ = 151550784.

The previous prime is 675908693. The next prime is 675908741. The reversal of 675908730 is 37809576.

It is a happy number.

It is a super-2 number, since 2×675908730² = 913705222580425800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 71 ways as a sum of consecutive naturals, for example, 2827951 + ... + 2828189.

It is an arithmetic number, because the mean of its divisors is an integer number (14217840).

Almost surely, 2^675908730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 675908730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1023684480).

675908730 is an abundant number, since it is smaller than the sum of its proper divisors (1371460230).

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

675908730 is a wasteful number, since it uses less digits than its factorization.

675908730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 675908730 is about 25998.2447484441. The cubic root of 675908730 is about 877.5987957043.

The spelling of 675908730 in words is "six hundred seventy-five million, nine hundred eight thousand, seven hundred thirty".