87212585973 has 8 divisors (see below), whose sum is σ = 116347664736. Its totient is φ = 58109615600.

The previous prime is 87212585947. The next prime is 87212585983. The reversal of 87212585973 is 37958521278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87212585973 - 2²⁶ = 87145477109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87212585983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8020758 + ... + 8031623.

It is an arithmetic number, because the mean of its divisors is an integer number (14543458092).

Almost surely, 2^87212585973 is an apocalyptic number.

It is an amenable number.

87212585973 is a deficient number, since it is larger than the sum of its proper divisors (29135078763).

87212585973 is a wasteful number, since it uses less digits than its factorization.

87212585973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16054195.

The product of its digits is 8467200, while the sum is 57.

The spelling of 87212585973 in words is "eighty-seven billion, two hundred twelve million, five hundred eighty-five thousand, nine hundred seventy-three".