87263542 has 16 divisors (see below), whose sum is σ = 138124800. Its totient is φ = 41233320.

The previous prime is 87263531. The next prime is 87263549. The reversal of 87263542 is 24536278.

It is a super-2 number, since 2×87263542² = 15229851524771528, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87263549) 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 7 ways as a sum of consecutive naturals, for example, 14067 + ... + 19297.

It is an arithmetic number, because the mean of its divisors is an integer number (8632800).

Almost surely, 2^87263542 is an apocalyptic number.

87263542 is a deficient number, since it is larger than the sum of its proper divisors (50861258).

87263542 is a wasteful number, since it uses less digits than its factorization.

87263542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5691.

The product of its digits is 80640, while the sum is 37.

The square root of 87263542 is about 9341.4957046503. The cubic root of 87263542 is about 443.5517315150.

The spelling of 87263542 in words is "eighty-seven million, two hundred sixty-three thousand, five hundred forty-two".