47456478 has 12 divisors (see below), whose sum is σ = 102822408. Its totient is φ = 15818820.

The previous prime is 47456467. The next prime is 47456489. The reversal of 47456478 is 87465474.

It is an interprime number because it is at equal distance from previous prime (47456467) and next prime (47456489).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1318218 + ... + 1318253.

It is an arithmetic number, because the mean of its divisors is an integer number (8568534).

Almost surely, 2^47456478 is an apocalyptic number.

47456478 is an abundant number, since it is smaller than the sum of its proper divisors (55365930).

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

47456478 is a wasteful number, since it uses less digits than its factorization.

47456478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2636479 (or 2636476 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 47456478 is about 6888.8662347298. The cubic root of 47456478 is about 362.0471790203.

The spelling of 47456478 in words is "forty-seven million, four hundred fifty-six thousand, four hundred seventy-eight".