84623444 has 6 divisors (see below), whose sum is σ = 148091034. Its totient is φ = 42311720.

The previous prime is 84623423. The next prime is 84623489. The reversal of 84623444 is 44432648.

It can be written as a sum of positive squares in only one way, i.e., 51122500 + 33500944 = 7150^2 + 5788^2 .

It is a super-2 number, since 2×84623444² = 14322254548842272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10577927 + ... + 10577934.

It is an arithmetic number, because the mean of its divisors is an integer number (24681839).

Almost surely, 2^84623444 is an apocalyptic number.

It is an amenable number.

84623444 is a deficient number, since it is larger than the sum of its proper divisors (63467590).

84623444 is a wasteful number, since it uses less digits than its factorization.

84623444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21155865 (or 21155863 counting only the distinct ones).

The product of its digits is 73728, while the sum is 35.

The square root of 84623444 is about 9199.1001733865. The cubic root of 84623444 is about 439.0327305433.

The spelling of 84623444 in words is "eighty-four million, six hundred twenty-three thousand, four hundred forty-four".