86744444 has 6 divisors (see below), whose sum is σ = 151802784. Its totient is φ = 43372220.

The previous prime is 86744407. The next prime is 86744447. The reversal of 86744444 is 44444768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86744447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10843052 + ... + 10843059.

It is an arithmetic number, because the mean of its divisors is an integer number (25300464).

Almost surely, 2^86744444 is an apocalyptic number.

It is an amenable number.

86744444 is a deficient number, since it is larger than the sum of its proper divisors (65058340).

86744444 is a wasteful number, since it uses less digits than its factorization.

86744444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21686115 (or 21686113 counting only the distinct ones).

The product of its digits is 344064, while the sum is 41.

The square root of 86744444 is about 9313.6697386154. The cubic root of 86744444 is about 442.6704742842.

The spelling of 86744444 in words is "eighty-six million, seven hundred forty-four thousand, four hundred forty-four".