672784330 has 8 divisors (see below), whose sum is σ = 1211011812. Its totient is φ = 269113728.

The previous prime is 672784327. The next prime is 672784349. The reversal of 672784330 is 33487276.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 648568089 + 24216241 = 25467^2 + 4921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33639207 + ... + 33639226.

Almost surely, 2^672784330 is an apocalyptic number.

672784330 is a deficient number, since it is larger than the sum of its proper divisors (538227482).

672784330 is a wasteful number, since it uses less digits than its factorization.

672784330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67278440.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 672784330 is about 25938.0864752973. The cubic root of 672784330 is about 876.2444681286.

The spelling of 672784330 in words is "six hundred seventy-two million, seven hundred eighty-four thousand, three hundred thirty".