326878423 has 2 divisors, whose sum is σ = 326878424. Its totient is φ = 326878422.

The previous prime is 326878417. The next prime is 326878427. The reversal of 326878423 is 324878623.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326878423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 326878423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (326878427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163439211 + 163439212.

It is an arithmetic number, because the mean of its divisors is an integer number (163439212).

Almost surely, 2^326878423 is an apocalyptic number.

326878423 is a deficient number, since it is larger than the sum of its proper divisors (1).

326878423 is an equidigital number, since it uses as much as digits as its factorization.

326878423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 43.

The square root of 326878423 is about 18079.7793957780. The cubic root of 326878423 is about 688.8564851284.

The spelling of 326878423 in words is "three hundred twenty-six million, eight hundred seventy-eight thousand, four hundred twenty-three".