87254493 has 8 divisors (see below), whose sum is σ = 117469248. Its totient is φ = 57604704.

The previous prime is 87254459. The next prime is 87254509. The reversal of 87254493 is 39445278.

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

It is not a de Polignac number, because 87254493 - 2⁹ = 87253981 is a prime.

It is a super-2 number, since 2×87254493² = 15226693097374098, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87254413) 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, 140880 + ... + 141497.

It is an arithmetic number, because the mean of its divisors is an integer number (14683656).

Almost surely, 2^87254493 is an apocalyptic number.

It is an amenable number.

87254493 is a deficient number, since it is larger than the sum of its proper divisors (30214755).

87254493 is a wasteful number, since it uses less digits than its factorization.

87254493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282483.

The product of its digits is 241920, while the sum is 42.

The square root of 87254493 is about 9341.0113478145. The cubic root of 87254493 is about 443.5363992687.

The spelling of 87254493 in words is "eighty-seven million, two hundred fifty-four thousand, four hundred ninety-three".