866248456 has 32 divisors (see below), whose sum is σ = 1711202400. Its totient is φ = 409968000.

The previous prime is 866248433. The next prime is 866248463. The reversal of 866248456 is 654842668.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264831 + ... + 268081.

It is an arithmetic number, because the mean of its divisors is an integer number (53475075).

Almost surely, 2^866248456 is an apocalyptic number.

It is an amenable number.

866248456 is a deficient number, since it is larger than the sum of its proper divisors (844953944).

866248456 is a wasteful number, since it uses less digits than its factorization.

866248456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029 (or 5025 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 49.

The square root of 866248456 is about 29432.0990756691. The cubic root of 866248456 is about 953.2661195488.

The spelling of 866248456 in words is "eight hundred sixty-six million, two hundred forty-eight thousand, four hundred fifty-six".