84444977 has 2 divisors, whose sum is σ = 84444978. Its totient is φ = 84444976.

The previous prime is 84444973. The next prime is 84445033. The reversal of 84444977 is 77944448.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70576801 + 13868176 = 8401^2 + 3724^2 .

It is a cyclic number.

It is not a de Polignac number, because 84444977 - 2² = 84444973 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (84444973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42222488 + 42222489.

It is an arithmetic number, because the mean of its divisors is an integer number (42222489).

Almost surely, 2^84444977 is an apocalyptic number.

It is an amenable number.

84444977 is a deficient number, since it is larger than the sum of its proper divisors (1).

84444977 is an equidigital number, since it uses as much as digits as its factorization.

84444977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 47.

The square root of 84444977 is about 9189.3948114117. The cubic root of 84444977 is about 438.7238799611.

The spelling of 84444977 in words is "eighty-four million, four hundred forty-four thousand, nine hundred seventy-seven".