87019748 has 12 divisors (see below), whose sum is σ = 155524992. Its totient is φ = 42584040.

The previous prime is 87019747. The next prime is 87019789. The reversal of 87019748 is 84791078.

It is a junction number, because it is equal to n+sod(n) for n = 87019699 and 87019708.

It is not an unprimeable number, because it can be changed into a prime (87019747) 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, 231248 + ... + 231623.

It is an arithmetic number, because the mean of its divisors is an integer number (12960416).

Almost surely, 2^87019748 is an apocalyptic number.

It is an amenable number.

87019748 is a deficient number, since it is larger than the sum of its proper divisors (68505244).

87019748 is a wasteful number, since it uses less digits than its factorization.

87019748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462922 (or 462920 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 87019748 is about 9328.4375969398. The cubic root of 87019748 is about 443.1382861956.

The spelling of 87019748 in words is "eighty-seven million, nineteen thousand, seven hundred forty-eight".