87478033 has 8 divisors (see below), whose sum is σ = 92279520. Its totient is φ = 82696320.

The previous prime is 87478021. The next prime is 87478057. The reversal of 87478033 is 33087478.

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 87478033 - 2²¹ = 85380881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87478933) 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, 4641 + ... + 14017.

It is an arithmetic number, because the mean of its divisors is an integer number (11534940).

Almost surely, 2^87478033 is an apocalyptic number.

It is an amenable number.

87478033 is a deficient number, since it is larger than the sum of its proper divisors (4801487).

87478033 is a wasteful number, since it uses less digits than its factorization.

87478033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9887.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 87478033 is about 9352.9692076901. The cubic root of 87478033 is about 443.9148461672.

The spelling of 87478033 in words is "eighty-seven million, four hundred seventy-eight thousand, thirty-three".