87427064 has 8 divisors (see below), whose sum is σ = 163925760. Its totient is φ = 43713528.

The previous prime is 87427061. The next prime is 87427069. The reversal of 87427064 is 46072478.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×87427064⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87427061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5464184 + ... + 5464199.

It is an arithmetic number, because the mean of its divisors is an integer number (20490720).

Almost surely, 2^87427064 is an apocalyptic number.

It is an amenable number.

87427064 is a deficient number, since it is larger than the sum of its proper divisors (76498696).

87427064 is a wasteful number, since it uses less digits than its factorization.

87427064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928389 (or 10928385 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 87427064 is about 9350.2440609858. The cubic root of 87427064 is about 443.8286138840.

The spelling of 87427064 in words is "eighty-seven million, four hundred twenty-seven thousand, sixty-four".