7140823 has 2 divisors, whose sum is σ = 7140824. Its totient is φ = 7140822.

The previous prime is 7140817. The next prime is 7140841. The reversal of 7140823 is 3280417.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7140823 - 2⁹ = 7140311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7140803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3570411 + 3570412.

It is an arithmetic number, because the mean of its divisors is an integer number (3570412).

Almost surely, 2^7140823 is an apocalyptic number.

7140823 is a deficient number, since it is larger than the sum of its proper divisors (1).

7140823 is an equidigital number, since it uses as much as digits as its factorization.

7140823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 7140823 is about 2672.2318387445. The cubic root of 7140823 is about 192.5673953032.

The spelling of 7140823 in words is "seven million, one hundred forty thousand, eight hundred twenty-three".