655672279 has 2 divisors, whose sum is σ = 655672280. Its totient is φ = 655672278.

The previous prime is 655672267. The next prime is 655672321. The reversal of 655672279 is 972276556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655672279 - 2²⁹ = 118801367 is a prime.

It is a super-2 number, since 2×655672279² = 859812274898107682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655672579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327836139 + 327836140.

It is an arithmetic number, because the mean of its divisors is an integer number (327836140).

Almost surely, 2^655672279 is an apocalyptic number.

655672279 is a deficient number, since it is larger than the sum of its proper divisors (1).

655672279 is an equidigital number, since it uses as much as digits as its factorization.

655672279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1587600, while the sum is 49.

The square root of 655672279 is about 25606.0984728248. The cubic root of 655672279 is about 868.7515801845.

The spelling of 655672279 in words is "six hundred fifty-five million, six hundred seventy-two thousand, two hundred seventy-nine".