87998352623 has 4 divisors (see below), whose sum is σ = 88440555600. Its totient is φ = 87556149648.

The previous prime is 87998352601. The next prime is 87998352649. The reversal of 87998352623 is 32625389978.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32625389978 = 2 ⋅16312694989.

It is a cyclic number.

It is not a de Polignac number, because 87998352623 - 2⁸ = 87998352367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87998352653) 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, 221101190 + ... + 221101587.

It is an arithmetic number, because the mean of its divisors is an integer number (22110138900).

Almost surely, 2^87998352623 is an apocalyptic number.

87998352623 is a deficient number, since it is larger than the sum of its proper divisors (442202977).

87998352623 is a wasteful number, since it uses less digits than its factorization.

87998352623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442202976.

The product of its digits is 39191040, while the sum is 62.

The spelling of 87998352623 in words is "eighty-seven billion, nine hundred ninety-eight million, three hundred fifty-two thousand, six hundred twenty-three".