87240801 has 4 divisors (see below), whose sum is σ = 116321072. Its totient is φ = 58160532.

The previous prime is 87240793. The next prime is 87240827. The reversal of 87240801 is 10804278.

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 not a de Polignac number, because 87240801 - 2³ = 87240793 is a prime.

It is a super-2 number, since 2×87240801² = 15221914718243202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87200801) 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, 14540131 + ... + 14540136.

It is an arithmetic number, because the mean of its divisors is an integer number (29080268).

Almost surely, 2^87240801 is an apocalyptic number.

It is an amenable number.

87240801 is a deficient number, since it is larger than the sum of its proper divisors (29080271).

87240801 is a wasteful number, since it uses less digits than its factorization.

87240801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29080270.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 87240801 is about 9340.2784219744. The cubic root of 87240801 is about 443.5131981022.

The spelling of 87240801 in words is "eighty-seven million, two hundred forty thousand, eight hundred one".