670022677 has 4 divisors (see below), whose sum is σ = 688131436. Its totient is φ = 651913920.

The previous prime is 670022629. The next prime is 670022711. The reversal of 670022677 is 776220076.

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 278022276 + 392000401 = 16674^2 + 19799^2 .

It is a cyclic number.

It is not a de Polignac number, because 670022677 - 2²³ = 661634069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 18108721 = 670022677 / (6 + 7 + 0 + 0 + 2 + 2 + 6 + 7 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670022077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9054324 + ... + 9054397.

It is an arithmetic number, because the mean of its divisors is an integer number (172032859).

Almost surely, 2^670022677 is an apocalyptic number.

It is an amenable number.

670022677 is a deficient number, since it is larger than the sum of its proper divisors (18108759).

670022677 is a wasteful number, since it uses less digits than its factorization.

670022677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18108758.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 670022677 is about 25884.7962518541. The cubic root of 670022677 is about 875.0438843840.

The spelling of 670022677 in words is "six hundred seventy million, twenty-two thousand, six hundred seventy-seven".