675721146 has 32 divisors (see below), whose sum is σ = 1362711168. Its totient is φ = 223369920.

The previous prime is 675721139. The next prime is 675721169. The reversal of 675721146 is 641127576.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 545640 + ... + 546876.

It is an arithmetic number, because the mean of its divisors is an integer number (42584724).

Almost surely, 2^675721146 is an apocalyptic number.

675721146 is an abundant number, since it is smaller than the sum of its proper divisors (686990022).

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

675721146 is a wasteful number, since it uses less digits than its factorization.

675721146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1926.

The product of its digits is 70560, while the sum is 39.

The square root of 675721146 is about 25994.6368699392. The cubic root of 675721146 is about 877.5176019391.

The spelling of 675721146 in words is "six hundred seventy-five million, seven hundred twenty-one thousand, one hundred forty-six".