1007665 has 8 divisors (see below), whose sum is σ = 1272960. Its totient is φ = 763632.

The previous prime is 1007651. The next prime is 1007681. The reversal of 1007665 is 5667001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1007665 - 2¹¹ = 1005617 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5209 + ... + 5398.

It is an arithmetic number, because the mean of its divisors is an integer number (159120).

2^1007665 is an apocalyptic number.

It is an amenable number.

1007665 is a deficient number, since it is larger than the sum of its proper divisors (265295).

1007665 is a wasteful number, since it uses less digits than its factorization.

1007665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10631.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 1007665 is about 1003.8251839837. The cubic root of 1007665 is about 100.2548499632.

It can be divided in two parts, 10076 and 65, that multiplied together give a triangular number (654940 = T₁₁₄₄).

The spelling of 1007665 in words is "one million, seven thousand, six hundred sixty-five".