87243948 has 144 divisors (see below), whose sum is σ = 254741760. Its totient is φ = 24931200.

The previous prime is 87243931. The next prime is 87243967. The reversal of 87243948 is 84934278.

It is a super-2 number, since 2×87243948² = 15223012925253408, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 815311 + ... + 815417.

It is an arithmetic number, because the mean of its divisors is an integer number (1769040).

Almost surely, 2^87243948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87243948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127370880).

87243948 is an abundant number, since it is smaller than the sum of its proper divisors (167497812).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87243948 is a wasteful number, since it uses less digits than its factorization.

87243948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 223 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 87243948 is about 9340.4468843841. The cubic root of 87243948 is about 443.5185309252.

The spelling of 87243948 in words is "eighty-seven million, two hundred forty-three thousand, nine hundred forty-eight".