87235507 has 4 divisors (see below), whose sum is σ = 87261696. Its totient is φ = 87209320.

The previous prime is 87235487. The next prime is 87235523. The reversal of 87235507 is 70553278.

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-87235507 is a prime.

It is a super-2 number, since 2×87235507² = 15220067363094098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87235537) 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, 7219 + ... + 15052.

It is an arithmetic number, because the mean of its divisors is an integer number (21815424).

Almost surely, 2^87235507 is an apocalyptic number.

87235507 is a deficient number, since it is larger than the sum of its proper divisors (26189).

87235507 is a wasteful number, since it uses less digits than its factorization.

87235507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26188.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 87235507 is about 9339.9950214119. The cubic root of 87235507 is about 443.5042267404.

The spelling of 87235507 in words is "eighty-seven million, two hundred thirty-five thousand, five hundred seven".