84923863 has 4 divisors (see below), whose sum is σ = 89393560. Its totient is φ = 80454168.

The previous prime is 84923807. The next prime is 84923869. The reversal of 84923863 is 36832948.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84923863 - 2¹⁷ = 84792791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84923869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2234820 + ... + 2234857.

It is an arithmetic number, because the mean of its divisors is an integer number (22348390).

Almost surely, 2^84923863 is an apocalyptic number.

84923863 is a deficient number, since it is larger than the sum of its proper divisors (4469697).

84923863 is a wasteful number, since it uses less digits than its factorization.

84923863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4469696.

The product of its digits is 248832, while the sum is 43.

The square root of 84923863 is about 9215.4144236708. The cubic root of 84923863 is about 439.5516490110.

The spelling of 84923863 in words is "eighty-four million, nine hundred twenty-three thousand, eight hundred sixty-three".