84840403 has 2 divisors, whose sum is σ = 84840404. Its totient is φ = 84840402.

The previous prime is 84840389. The next prime is 84840409. The reversal of 84840403 is 30404848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84840403 - 2²¹ = 82743251 is a prime.

It is not a weakly prime, because it can be changed into another prime (84840409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42420201 + 42420202.

It is an arithmetic number, because the mean of its divisors is an integer number (42420202).

Almost surely, 2^84840403 is an apocalyptic number.

84840403 is a deficient number, since it is larger than the sum of its proper divisors (1).

84840403 is an equidigital number, since it uses as much as digits as its factorization.

84840403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 84840403 is about 9210.8850280524. The cubic root of 84840403 is about 439.4076101686.

The spelling of 84840403 in words is "eighty-four million, eight hundred forty thousand, four hundred three".