87254507 has 4 divisors (see below), whose sum is σ = 88154136. Its totient is φ = 86354880.

The previous prime is 87254459. The next prime is 87254509. The reversal of 87254507 is 70545278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87254507 - 2¹² = 87250411 is a prime.

It is a super-2 number, since 2×87254507² = 15226697983626098, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87254509) 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, 449669 + ... + 449862.

It is an arithmetic number, because the mean of its divisors is an integer number (22038534).

Almost surely, 2^87254507 is an apocalyptic number.

87254507 is a deficient number, since it is larger than the sum of its proper divisors (899629).

87254507 is an equidigital number, since it uses as much as digits as its factorization.

87254507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899628.

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 87254507 is about 9341.0120971980. The cubic root of 87254507 is about 443.5364229905.

The spelling of 87254507 in words is "eighty-seven million, two hundred fifty-four thousand, five hundred seven".