84887623 has 2 divisors, whose sum is σ = 84887624. Its totient is φ = 84887622.

The previous prime is 84887591. The next prime is 84887639. The reversal of 84887623 is 32678848.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 84887623 - 2⁵ = 84887591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84887653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42443811 + 42443812.

It is an arithmetic number, because the mean of its divisors is an integer number (42443812).

Almost surely, 2^84887623 is an apocalyptic number.

84887623 is a deficient number, since it is larger than the sum of its proper divisors (1).

84887623 is an equidigital number, since it uses as much as digits as its factorization.

84887623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 46.

The square root of 84887623 is about 9213.4479430884. The cubic root of 84887623 is about 439.4891160644.

The spelling of 84887623 in words is "eighty-four million, eight hundred eighty-seven thousand, six hundred twenty-three".