87061593 has 4 divisors (see below), whose sum is σ = 116082128. Its totient is φ = 58041060.

The previous prime is 87061529. The next prime is 87061613. The reversal of 87061593 is 39516078.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 87061593 - 2⁶ = 87061529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87061193) 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, 14510263 + ... + 14510268.

It is an arithmetic number, because the mean of its divisors is an integer number (29020532).

Almost surely, 2^87061593 is an apocalyptic number.

It is an amenable number.

87061593 is a deficient number, since it is larger than the sum of its proper divisors (29020535).

87061593 is a wasteful number, since it uses less digits than its factorization.

87061593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29020534.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 87061593 is about 9330.6802002855. The cubic root of 87061593 is about 443.2093051330.

The spelling of 87061593 in words is "eighty-seven million, sixty-one thousand, five hundred ninety-three".