676321651 has 4 divisors (see below), whose sum is σ = 686416072. Its totient is φ = 666227232.

The previous prime is 676321649. The next prime is 676321697. The reversal of 676321651 is 156123676.

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

It is a cyclic number.

It is not a de Polignac number, because 676321651 - 2¹ = 676321649 is a prime.

It is a super-2 number, since 2×676321651² = 914821951222731602, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 676321651.

It is not an unprimeable number, because it can be changed into a prime (676325651) 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, 5047110 + ... + 5047243.

It is an arithmetic number, because the mean of its divisors is an integer number (171604018).

Almost surely, 2^676321651 is an apocalyptic number.

676321651 is a deficient number, since it is larger than the sum of its proper divisors (10094421).

676321651 is a wasteful number, since it uses less digits than its factorization.

676321651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094420.

The product of its digits is 45360, while the sum is 37.

The square root of 676321651 is about 26006.1848605289. The cubic root of 676321651 is about 877.7774713091. Note that the first 3 decimals are identical.

The spelling of 676321651 in words is "six hundred seventy-six million, three hundred twenty-one thousand, six hundred fifty-one".