847280400 has 60 divisors (see below), whose sum is σ = 2714125392. Its totient is φ = 225941120.

The previous prime is 847280389. The next prime is 847280407. The reversal of 847280400 is 4082748.

It is a tau number, because it is divible by the number of its divisors (60).

It is not an unprimeable number, because it can be changed into a prime (847280407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351834 + ... + 354233.

Almost surely, 2^847280400 is an apocalyptic number.

847280400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

847280400 is an abundant number, since it is smaller than the sum of its proper divisors (1866844992).

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

847280400 is a wasteful number, since it uses less digits than its factorization.

847280400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706088 (or 706077 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 847280400 is about 29108.0813520919. The cubic root of 847280400 is about 946.2568869409.

The spelling of 847280400 in words is "eight hundred forty-seven million, two hundred eighty thousand, four hundred".