671001072 has 80 divisors (see below), whose sum is σ = 2049392640. Its totient is φ = 185101056.

The previous prime is 671001059. The next prime is 671001083. The reversal of 671001072 is 270100176.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24688 + ... + 44175.

It is an arithmetic number, because the mean of its divisors is an integer number (25617408).

Almost surely, 2^671001072 is an apocalyptic number.

It is an amenable number.

671001072 is an abundant number, since it is smaller than the sum of its proper divisors (1378391568).

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

671001072 is a wasteful number, since it uses less digits than its factorization.

671001072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68910 (or 68904 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 24.

The square root of 671001072 is about 25903.6883860195. The cubic root of 671001072 is about 875.4696024009.

The spelling of 671001072 in words is "six hundred seventy-one million, one thousand, seventy-two".