671099667 has 32 divisors (see below), whose sum is σ = 1107988992. Its totient is φ = 352525824.

The previous prime is 671099659. The next prime is 671099683. The reversal of 671099667 is 766990176.

It is not a de Polignac number, because 671099667 - 2³ = 671099659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (671099647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6508 + ... + 37209.

It is an arithmetic number, because the mean of its divisors is an integer number (34624656).

Almost surely, 2^671099667 is an apocalyptic number.

671099667 is a deficient number, since it is larger than the sum of its proper divisors (436889325).

671099667 is a wasteful number, since it uses less digits than its factorization.

671099667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43787.

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 671099667 is about 25905.5914234746. The cubic root of 671099667 is about 875.5124799768.

The spelling of 671099667 in words is "six hundred seventy-one million, ninety-nine thousand, six hundred sixty-seven".