87785276 has 12 divisors (see below), whose sum is σ = 155917608. Its totient is φ = 43237392.

The previous prime is 87785251. The next prime is 87785279. The reversal of 87785276 is 67258778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87785279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163511 + ... + 164046.

It is an arithmetic number, because the mean of its divisors is an integer number (12993134).

Almost surely, 2^87785276 is an apocalyptic number.

It is an amenable number.

87785276 is a deficient number, since it is larger than the sum of its proper divisors (68132332).

87785276 is a wasteful number, since it uses less digits than its factorization.

87785276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327628 (or 327626 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 50.

The square root of 87785276 is about 9369.3797019867. The cubic root of 87785276 is about 444.4339492985.

The spelling of 87785276 in words is "eighty-seven million, seven hundred eighty-five thousand, two hundred seventy-six".