87945373 has 4 divisors (see below), whose sum is σ = 88472160. Its totient is φ = 87418588.

The previous prime is 87945367. The next prime is 87945379. The reversal of 87945373 is 37354978.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (87945367) and next prime (87945379).

It is a cyclic number.

It is not a de Polignac number, because 87945373 - 2¹⁷ = 87814301 is a prime.

It is a super-3 number, since 3×87945373³ (a number of 25 digits) contains 333 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 (87945379) 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, 263143 + ... + 263476.

It is an arithmetic number, because the mean of its divisors is an integer number (22118040).

Almost surely, 2^87945373 is an apocalyptic number.

It is an amenable number.

87945373 is a deficient number, since it is larger than the sum of its proper divisors (526787).

87945373 is a wasteful number, since it uses less digits than its factorization.

87945373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526786.

The product of its digits is 635040, while the sum is 46.

The square root of 87945373 is about 9377.9194387668. The cubic root of 87945373 is about 444.7039616686.

The spelling of 87945373 in words is "eighty-seven million, nine hundred forty-five thousand, three hundred seventy-three".