670487061 has 4 divisors (see below), whose sum is σ = 893982752. Its totient is φ = 446991372.

The previous prime is 670486967. The next prime is 670487071. The reversal of 670487061 is 160784076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 670487061 - 2²⁶ = 603378197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670487071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111747841 + ... + 111747846.

It is an arithmetic number, because the mean of its divisors is an integer number (223495688).

Almost surely, 2^670487061 is an apocalyptic number.

It is an amenable number.

670487061 is a deficient number, since it is larger than the sum of its proper divisors (223495691).

670487061 is a wasteful number, since it uses less digits than its factorization.

670487061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223495690.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 670487061 is about 25893.7649058610. The cubic root of 670487061 is about 875.2459982075.

The spelling of 670487061 in words is "six hundred seventy million, four hundred eighty-seven thousand, sixty-one".