87771233 has 8 divisors (see below), whose sum is σ = 97557696. Its totient is φ = 78286000.

The previous prime is 87771191. The next prime is 87771247. The reversal of 87771233 is 33217778.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87771233 - 2⁶ = 87771169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87771263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74693 + ... + 75858.

It is an arithmetic number, because the mean of its divisors is an integer number (12194712).

Almost surely, 2^87771233 is an apocalyptic number.

It is an amenable number.

87771233 is a deficient number, since it is larger than the sum of its proper divisors (9786463).

87771233 is a wasteful number, since it uses less digits than its factorization.

87771233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150615.

The product of its digits is 49392, while the sum is 38.

The square root of 87771233 is about 9368.6302627439. The cubic root of 87771233 is about 444.4102493529.

The spelling of 87771233 in words is "eighty-seven million, seven hundred seventy-one thousand, two hundred thirty-three".