671539050 has 432 divisors, whose sum is σ = 2396179968. Its totient is φ = 131155200.

The previous prime is 671539031. The next prime is 671539103. The reversal of 671539050 is 50935176.

It is a happy number.

671539050 is a `hidden beast` number, since 6 + 71 + 539 + 0 + 50 = 666.

671539050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 671538996 and 671539014.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 21662535 + ... + 21662565.

Almost surely, 2^671539050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671539050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198089984).

671539050 is an abundant number, since it is smaller than the sum of its proper divisors (1724640918).

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

671539050 is a wasteful number, since it uses less digits than its factorization.

671539050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 671539050 is about 25914.0705023352. The cubic root of 671539050 is about 875.7035104081.

The spelling of 671539050 in words is "six hundred seventy-one million, five hundred thirty-nine thousand, fifty".