87309304 has 8 divisors (see below), whose sum is σ = 163704960. Its totient is φ = 43654648.

The previous prime is 87309301. The next prime is 87309323. The reversal of 87309304 is 40390378.

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

It is a self number, because there is not a number n which added to its sum of digits gives 87309304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87309301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5456824 + ... + 5456839.

It is an arithmetic number, because the mean of its divisors is an integer number (20463120).

Almost surely, 2^87309304 is an apocalyptic number.

It is an amenable number.

87309304 is a deficient number, since it is larger than the sum of its proper divisors (76395656).

87309304 is a wasteful number, since it uses less digits than its factorization.

87309304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10913669 (or 10913665 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 87309304 is about 9343.9447772341. The cubic root of 87309304 is about 443.6292525002.

The spelling of 87309304 in words is "eighty-seven million, three hundred nine thousand, three hundred four".