87217397048 has 16 divisors (see below), whose sum is σ = 163536165000. Its totient is φ = 43607753056.

The previous prime is 87217397041. The next prime is 87217397063. The reversal of 87217397048 is 84079371278.

It is a happy number.

It is a super-2 number, since 2×87217397048² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87217396984 and 87217397002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87217397041) 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, 415778 + ... + 589326.

Almost surely, 2^87217397048 is an apocalyptic number.

It is an amenable number.

87217397048 is a deficient number, since it is larger than the sum of its proper divisors (76318767952).

87217397048 is a wasteful number, since it uses less digits than its factorization.

87217397048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236374 (or 236370 counting only the distinct ones).

The product of its (nonzero) digits is 4741632, while the sum is 56.

The spelling of 87217397048 in words is "eighty-seven billion, two hundred seventeen million, three hundred ninety-seven thousand, forty-eight".