86427644 has 12 divisors (see below), whose sum is σ = 152094600. Its totient is φ = 42972048.

The previous prime is 86427623. The next prime is 86427673. The reversal of 86427644 is 44672468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59639 + ... + 61070.

It is an arithmetic number, because the mean of its divisors is an integer number (12674550).

Almost surely, 2^86427644 is an apocalyptic number.

It is an amenable number.

86427644 is a deficient number, since it is larger than the sum of its proper divisors (65666956).

86427644 is a wasteful number, since it uses less digits than its factorization.

86427644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120892 (or 120890 counting only the distinct ones).

The product of its digits is 258048, while the sum is 41.

The square root of 86427644 is about 9296.6469224124. The cubic root of 86427644 is about 442.1309235902.

It can be divided in two parts, 864 and 27644, that multiplied together give a triangular number (23884416 = T₆₉₁₁).

The spelling of 86427644 in words is "eighty-six million, four hundred twenty-seven thousand, six hundred forty-four".