87263328 has 24 divisors (see below), whose sum is σ = 229066488. Its totient is φ = 29087744.

The previous prime is 87263327. The next prime is 87263339. The reversal of 87263328 is 82336278.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×87263328² = 15229776827271168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87263327) 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, 454401 + ... + 454592.

It is an arithmetic number, because the mean of its divisors is an integer number (9544437).

Almost surely, 2^87263328 is an apocalyptic number.

It is an amenable number.

87263328 is an abundant number, since it is smaller than the sum of its proper divisors (141803160).

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

87263328 is a wasteful number, since it uses less digits than its factorization.

87263328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909006 (or 908998 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 87263328 is about 9341.4842503748. The cubic root of 87263328 is about 443.5513689346.

The spelling of 87263328 in words is "eighty-seven million, two hundred sixty-three thousand, three hundred twenty-eight".