671071464 has 288 divisors, whose sum is σ = 2285599680. Its totient is φ = 176698368.

The previous prime is 671071441. The next prime is 671071493. The reversal of 671071464 is 464170176.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4018309 + ... + 4018475.

It is an arithmetic number, because the mean of its divisors is an integer number (7936110).

Almost surely, 2^671071464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671071464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1142799840).

671071464 is an abundant number, since it is smaller than the sum of its proper divisors (1614528216).

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

671071464 is a wasteful number, since it uses less digits than its factorization.

671071464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 671071464 is about 25905.0470758113. The cubic root of 671071464 is about 875.5002153184.

The spelling of 671071464 in words is "six hundred seventy-one million, seventy-one thousand, four hundred sixty-four".