47215385 has 16 divisors (see below), whose sum is σ = 64960896. Its totient is φ = 32272128.

The previous prime is 47215309. The next prime is 47215397. The reversal of 47215385 is 58351274.

It is a happy number.

It is not a de Polignac number, because 47215385 - 2¹⁴ = 47199001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9794 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (4060056).

Almost surely, 2^47215385 is an apocalyptic number.

It is an amenable number.

47215385 is a deficient number, since it is larger than the sum of its proper divisors (17745511).

47215385 is a wasteful number, since it uses less digits than its factorization.

47215385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352.

The product of its digits is 33600, while the sum is 35.

The square root of 47215385 is about 6871.3452103646. The cubic root of 47215385 is about 361.4330354406.

The spelling of 47215385 in words is "forty-seven million, two hundred fifteen thousand, three hundred eighty-five".