87073319 has 4 divisors (see below), whose sum is σ = 87310944. Its totient is φ = 86835696.

The previous prime is 87073307. The next prime is 87073351. The reversal of 87073319 is 91337078.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87073319 is a prime.

It is a super-2 number, since 2×87073319² = 15163525763351522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87073369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118262 + ... + 118995.

It is an arithmetic number, because the mean of its divisors is an integer number (21827736).

Almost surely, 2^87073319 is an apocalyptic number.

87073319 is a deficient number, since it is larger than the sum of its proper divisors (237625).

87073319 is a wasteful number, since it uses less digits than its factorization.

87073319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237624.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 87073319 is about 9331.3085363201. The cubic root of 87073319 is about 443.2292023071.

The spelling of 87073319 in words is "eighty-seven million, seventy-three thousand, three hundred nineteen".