87235573 has 8 divisors (see below), whose sum is σ = 92127168. Its totient is φ = 82435584.

The previous prime is 87235549. The next prime is 87235579. The reversal of 87235573 is 37553278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87235573 - 2¹³ = 87227381 is a prime.

It is a super-2 number, since 2×87235573² = 15220090393276658, 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 (87235579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20940 + ... + 24757.

It is an arithmetic number, because the mean of its divisors is an integer number (11515896).

Almost surely, 2^87235573 is an apocalyptic number.

87235573 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

87235573 is a deficient number, since it is larger than the sum of its proper divisors (4891595).

87235573 is a wasteful number, since it uses less digits than its factorization.

87235573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45803.

The product of its digits is 176400, while the sum is 40.

The square root of 87235573 is about 9339.9985546037. The cubic root of 87235573 is about 443.5043385881.

The spelling of 87235573 in words is "eighty-seven million, two hundred thirty-five thousand, five hundred seventy-three".