863790448 has 40 divisors (see below), whose sum is σ = 1731952640. Its totient is φ = 416905920.

The previous prime is 863790443. The next prime is 863790467. The reversal of 863790448 is 844097368.

It is a super-2 number, since 2×863790448² = 1492267876112081408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863790443) 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, 215761 + ... + 219727.

It is an arithmetic number, because the mean of its divisors is an integer number (43298816).

Almost surely, 2^863790448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 863790448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865976320).

863790448 is an abundant number, since it is smaller than the sum of its proper divisors (868162192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

863790448 is a wasteful number, since it uses less digits than its factorization.

863790448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445 (or 4439 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 863790448 is about 29390.3121453312. The cubic root of 863790448 is about 952.3636242454.

The spelling of 863790448 in words is "eight hundred sixty-three million, seven hundred ninety thousand, four hundred forty-eight".