671462890 has 32 divisors (see below), whose sum is σ = 1393983360. Its totient is φ = 228101184.

The previous prime is 671462879. The next prime is 671462899. The reversal of 671462890 is 98264176.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (671462899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36372 + ... + 51631.

It is an arithmetic number, because the mean of its divisors is an integer number (43561980).

Almost surely, 2^671462890 is an apocalyptic number.

671462890 is an abundant number, since it is smaller than the sum of its proper divisors (722520470).

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

671462890 is a wasteful number, since it uses less digits than its factorization.

671462890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88126.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 671462890 is about 25912.6009887082. The cubic root of 671462890 is about 875.6704043161.

The spelling of 671462890 in words is "six hundred seventy-one million, four hundred sixty-two thousand, eight hundred ninety".