670751 has 4 divisors (see below), whose sum is σ = 673032. Its totient is φ = 668472.

The previous prime is 670739. The next prime is 670763. The reversal of 670751 is 157076.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (670739) and next prime (670763).

It is a cyclic number.

It is not a de Polignac number, because 670751 - 2¹⁸ = 408607 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 670751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620 + ... + 1313.

It is an arithmetic number, because the mean of its divisors is an integer number (168258).

2⁶⁷⁰⁷⁵¹ is an apocalyptic number.

670751 is a deficient number, since it is larger than the sum of its proper divisors (2281).

670751 is a wasteful number, since it uses less digits than its factorization.

670751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 670751 is about 818.9938949711. The cubic root of 670751 is about 87.5360830773.

It can be divided in two parts, 67075 and 1, that added together give a palindrome (67076).

The spelling of 670751 in words is "six hundred seventy thousand, seven hundred fifty-one".