7321406423 has 2 divisors, whose sum is σ = 7321406424. Its totient is φ = 7321406422.

The previous prime is 7321406399. The next prime is 7321406429. The reversal of 7321406423 is 3246041237.

It is a strong prime.

It is an emirp because it is prime and its reverse (3246041237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7321406423 - 2⁶ = 7321406359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7321406423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7321406429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3660703211 + 3660703212.

It is an arithmetic number, because the mean of its divisors is an integer number (3660703212).

Almost surely, 2^7321406423 is an apocalyptic number.

7321406423 is a deficient number, since it is larger than the sum of its proper divisors (1).

7321406423 is an equidigital number, since it uses as much as digits as its factorization.

7321406423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 7321406423 is about 85565.2173666379. The cubic root of 7321406423 is about 1941.7717210901.

The spelling of 7321406423 in words is "seven billion, three hundred twenty-one million, four hundred six thousand, four hundred twenty-three".