57699216 has 75 divisors (see below), whose sum is σ = 167793483.
Its totient is φ = 19141920.
The previous prime is 57699211. The next prime is 57699217. The reversal of 57699216 is 61299675.
It is a happy number.
The square root of 57699216 is 7596.
It is a perfect power (a square), and thus also a powerful number.
Its product of digits (204120) is a multiple of the sum of its prime divisors (216).
It is not an unprimeable number, because it can be changed into a prime (57699211) by changing a digit.
It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 273351 + ... + 273561.
Almost surely, 257699216 is an apocalyptic number.
57699216 is the 7596-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 57699216
57699216 is an abundant number, since it is smaller than the sum of its proper divisors (110094267).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
57699216 is an equidigital number, since it uses as much as digits as its factorization.
57699216 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 442 (or 216 counting only the distinct ones).
The product of its digits is 204120, while the sum is 45.
The cubic root of 57699216 is about 386.4173673765.
The spelling of 57699216 in words is "fifty-seven million, six hundred ninety-nine thousand, two hundred sixteen".