672541582 has 4 divisors (see below), whose sum is σ = 1008812376. Its totient is φ = 336270790.

The previous prime is 672541577. The next prime is 672541591. The reversal of 672541582 is 285145276.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent 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 as a sum of consecutive naturals, namely, 168135394 + ... + 168135397.

It is an arithmetic number, because the mean of its divisors is an integer number (252203094).

Almost surely, 2^672541582 is an apocalyptic number.

672541582 is a deficient number, since it is larger than the sum of its proper divisors (336270794).

672541582 is a wasteful number, since it uses less digits than its factorization.

672541582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336270793.

The product of its digits is 134400, while the sum is 40.

The square root of 672541582 is about 25933.4066794164. The cubic root of 672541582 is about 876.1390692312.

The spelling of 672541582 in words is "six hundred seventy-two million, five hundred forty-one thousand, five hundred eighty-two".