87040763 has 4 divisors (see below), whose sum is σ = 90825168. Its totient is φ = 83256360.

The previous prime is 87040739. The next prime is 87040813. The reversal of 87040763 is 36704078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36704078 = 2 ⋅18352039.

It is a cyclic number.

It is not a de Polignac number, because 87040763 - 2⁸ = 87040507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87042763) 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, 1892168 + ... + 1892213.

It is an arithmetic number, because the mean of its divisors is an integer number (22706292).

Almost surely, 2^87040763 is an apocalyptic number.

87040763 is a deficient number, since it is larger than the sum of its proper divisors (3784405).

87040763 is a wasteful number, since it uses less digits than its factorization.

87040763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784404.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 87040763 is about 9329.5639233568. The cubic root of 87040763 is about 443.1739554996.

The spelling of 87040763 in words is "eighty-seven million, forty thousand, seven hundred sixty-three".