670919533 has 4 divisors (see below), whose sum is σ = 676856988. Its totient is φ = 664982080.

The previous prime is 670919489. The next prime is 670919549. The reversal of 670919533 is 335919076.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11303044 + 659616489 = 3362^2 + 25683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-670919533 is a prime.

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 670919533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670919563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2968558 + ... + 2968783.

It is an arithmetic number, because the mean of its divisors is an integer number (169214247).

Almost surely, 2^670919533 is an apocalyptic number.

It is an amenable number.

670919533 is a deficient number, since it is larger than the sum of its proper divisors (5937455).

670919533 is a wasteful number, since it uses less digits than its factorization.

670919533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937454.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 670919533 is about 25902.1144503687. The cubic root of 670919533 is about 875.4341390658.

The spelling of 670919533 in words is "six hundred seventy million, nine hundred nineteen thousand, five hundred thirty-three".