47310945 has 16 divisors (see below), whose sum is σ = 82579392. Its totient is φ = 22938560.

The previous prime is 47310899. The next prime is 47310961. The reversal of 47310945 is 54901374.

It is not a de Polignac number, because 47310945 - 2¹³ = 47302753 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 143202 + ... + 143531.

It is an arithmetic number, because the mean of its divisors is an integer number (5161212).

Almost surely, 2^47310945 is an apocalyptic number.

It is an amenable number.

47310945 is a deficient number, since it is larger than the sum of its proper divisors (35268447).

47310945 is a wasteful number, since it uses less digits than its factorization.

47310945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286752.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 47310945 is about 6878.2952102974. The cubic root of 47310945 is about 361.6767078932.

The spelling of 47310945 in words is "forty-seven million, three hundred ten thousand, nine hundred forty-five".