47078864 has 40 divisors (see below), whose sum is σ = 105439680. Its totient is φ = 19945728.

The previous prime is 47078849. The next prime is 47078879. The reversal of 47078864 is 46887074.

It is an interprime number because it is at equal distance from previous prime (47078849) and next prime (47078879).

It is a congruent number.

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, 7607 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (2635992).

Almost surely, 2^47078864 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 47078864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52719840).

47078864 is an abundant number, since it is smaller than the sum of its proper divisors (58360816).

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

47078864 is a wasteful number, since it uses less digits than its factorization.

47078864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4827 (or 4821 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 47078864 is about 6861.4039379707. The cubic root of 47078864 is about 361.0843437744.

The spelling of 47078864 in words is "forty-seven million, seventy-eight thousand, eight hundred sixty-four".