87061603 has 4 divisors (see below), whose sum is σ = 87243840. Its totient is φ = 86879368.

The previous prime is 87061529. The next prime is 87061613. The reversal of 87061603 is 30616078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87061603 - 2¹³ = 87053411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87061613) 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, 90400 + ... + 91357.

It is an arithmetic number, because the mean of its divisors is an integer number (21810960).

Almost surely, 2^87061603 is an apocalyptic number.

87061603 is a deficient number, since it is larger than the sum of its proper divisors (182237).

87061603 is a wasteful number, since it uses less digits than its factorization.

87061603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182236.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 87061603 is about 9330.6807361521. The cubic root of 87061603 is about 443.2093221022.

The spelling of 87061603 in words is "eighty-seven million, sixty-one thousand, six hundred three".