984345623 has 2 divisors, whose sum is σ = 984345624. Its totient is φ = 984345622.

The previous prime is 984345563. The next prime is 984345629. The reversal of 984345623 is 326543489.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-984345623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (984345629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492172811 + 492172812.

It is an arithmetic number, because the mean of its divisors is an integer number (492172812).

Almost surely, 2^984345623 is an apocalyptic number.

984345623 is a deficient number, since it is larger than the sum of its proper divisors (1).

984345623 is an equidigital number, since it uses as much as digits as its factorization.

984345623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 44.

The square root of 984345623 is about 31374.2828284568. The cubic root of 984345623 is about 994.7544061920.

The spelling of 984345623 in words is "nine hundred eighty-four million, three hundred forty-five thousand, six hundred twenty-three".