87748473 has 8 divisors (see below), whose sum is σ = 122084928. Its totient is φ = 55955504.

The previous prime is 87748471. The next prime is 87748477. The reversal of 87748473 is 37484778.

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

It is not a de Polignac number, because 87748473 - 2¹ = 87748471 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (87748471) 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, 635790 + ... + 635927.

It is an arithmetic number, because the mean of its divisors is an integer number (15260616).

Almost surely, 2^87748473 is an apocalyptic number.

It is an amenable number.

87748473 is a deficient number, since it is larger than the sum of its proper divisors (34336455).

87748473 is a wasteful number, since it uses less digits than its factorization.

87748473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271743.

The product of its digits is 1053696, while the sum is 48.

The square root of 87748473 is about 9367.4154920127. The cubic root of 87748473 is about 444.3718326214.

The spelling of 87748473 in words is "eighty-seven million, seven hundred forty-eight thousand, four hundred seventy-three".