47809395 has 24 divisors (see below), whose sum is σ = 83047536. Its totient is φ = 25443648.

The previous prime is 47809393. The next prime is 47809427. The reversal of 47809395 is 59390874.

47809395 is a `hidden beast` number, since 478 + 0 + 93 + 95 = 666.

It is not a de Polignac number, because 47809395 - 2¹ = 47809393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 47809395.

It is not an unprimeable number, because it can be changed into a prime (47809393) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28572 + ... + 30198.

It is an arithmetic number, because the mean of its divisors is an integer number (3460314).

Almost surely, 2^47809395 is an apocalyptic number.

47809395 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47809395 is a deficient number, since it is larger than the sum of its proper divisors (35238141).

47809395 is a wasteful number, since it uses less digits than its factorization.

47809395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291 (or 2288 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 47809395 is about 6914.4338163005. The cubic root of 47809395 is about 362.9424356048.

The spelling of 47809395 in words is "forty-seven million, eight hundred nine thousand, three hundred ninety-five".