87782772 has 48 divisors (see below), whose sum is σ = 255370752. Its totient is φ = 22800480.

The previous prime is 87782753. The next prime is 87782777. The reversal of 87782772 is 27728778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87782777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46578 + ... + 48425.

It is an arithmetic number, because the mean of its divisors is an integer number (5320224).

Almost surely, 2^87782772 is an apocalyptic number.

It is an amenable number.

87782772 is an abundant number, since it is smaller than the sum of its proper divisors (167587980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87782772 is a wasteful number, since it uses less digits than its factorization.

87782772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95028 (or 95026 counting only the distinct ones).

The product of its digits is 614656, while the sum is 48.

The square root of 87782772 is about 9369.2460742581. The cubic root of 87782772 is about 444.4297235587.

The spelling of 87782772 in words is "eighty-seven million, seven hundred eighty-two thousand, seven hundred seventy-two".