87263004 has 12 divisors (see below), whose sum is σ = 203613704. Its totient is φ = 29087664.

The previous prime is 87262997. The next prime is 87263009. The reversal of 87263004 is 40036278.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×87263004² = 15229663734208032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87263009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3635947 + ... + 3635970.

Almost surely, 2^87263004 is an apocalyptic number.

It is an amenable number.

87263004 is an abundant number, since it is smaller than the sum of its proper divisors (116350700).

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

87263004 is a wasteful number, since it uses less digits than its factorization.

87263004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7271924 (or 7271922 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 87263004 is about 9341.4669083608. The cubic root of 87263004 is about 443.5508199800.

The spelling of 87263004 in words is "eighty-seven million, two hundred sixty-three thousand, four".