87654545 has 16 divisors (see below), whose sum is σ = 115869312. Its totient is φ = 63125760.

The previous prime is 87654521. The next prime is 87654547. The reversal of 87654545 is 54545678.

87654545 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 87654545 - 2¹² = 87650449 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87654496 and 87654505.

It is not an unprimeable number, because it can be changed into a prime (87654547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2072 + ... + 13401.

It is an arithmetic number, because the mean of its divisors is an integer number (7241832).

Almost surely, 2^87654545 is an apocalyptic number.

It is an amenable number.

87654545 is a deficient number, since it is larger than the sum of its proper divisors (28214767).

87654545 is a wasteful number, since it uses less digits than its factorization.

87654545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15592.

The product of its digits is 672000, while the sum is 44.

The square root of 87654545 is about 9362.4006002734. The cubic root of 87654545 is about 444.2132207097.

The spelling of 87654545 in words is "eighty-seven million, six hundred fifty-four thousand, five hundred forty-five".