676621633 has 8 divisors (see below), whose sum is σ = 680150952. Its totient is φ = 673099776.

The previous prime is 676621619. The next prime is 676621637. The reversal of 676621633 is 336126676.

It can be written as a sum of positive squares in 4 ways, for example, as 46009089 + 630612544 = 6783^2 + 25112^2 .

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 676621633 - 2¹⁷ = 676490561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676621637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285891 + ... + 288247.

It is an arithmetic number, because the mean of its divisors is an integer number (85018869).

Almost surely, 2^676621633 is an apocalyptic number.

It is an amenable number.

676621633 is a deficient number, since it is larger than the sum of its proper divisors (3529319).

676621633 is a wasteful number, since it uses less digits than its factorization.

676621633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731.

The product of its digits is 163296, while the sum is 40.

The square root of 676621633 is about 26011.9517337704. The cubic root of 676621633 is about 877.9072313225.

The spelling of 676621633 in words is "six hundred seventy-six million, six hundred twenty-one thousand, six hundred thirty-three".