679249273 has 2 divisors, whose sum is σ = 679249274. Its totient is φ = 679249272.

The previous prime is 679249267. The next prime is 679249313. The reversal of 679249273 is 372942976.

It is a happy number.

679249273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 541585984 + 137663289 = 23272^2 + 11733^2 .

It is a cyclic number.

It is not a de Polignac number, because 679249273 - 2²¹ = 677152121 is a prime.

It is a super-2 number, since 2×679249273² = 922759149742057058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (679249253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339624636 + 339624637.

It is an arithmetic number, because the mean of its divisors is an integer number (339624637).

Almost surely, 2^679249273 is an apocalyptic number.

It is an amenable number.

679249273 is a deficient number, since it is larger than the sum of its proper divisors (1).

679249273 is an equidigital number, since it uses as much as digits as its factorization.

679249273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The square root of 679249273 is about 26062.4111125583. The cubic root of 679249273 is about 879.0422055878.

It can be divided in two parts, 6792 and 49273, that added together give a palindrome (56065).

The spelling of 679249273 in words is "six hundred seventy-nine million, two hundred forty-nine thousand, two hundred seventy-three".