47308946 has 4 divisors (see below), whose sum is σ = 70963422. Its totient is φ = 23654472.

The previous prime is 47308927. The next prime is 47308969. The reversal of 47308946 is 64980374.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39828721 + 7480225 = 6311^2 + 2735^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11827235 + ... + 11827238.

Almost surely, 2^47308946 is an apocalyptic number.

47308946 is a deficient number, since it is larger than the sum of its proper divisors (23654476).

47308946 is a wasteful number, since it uses less digits than its factorization.

47308946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23654475.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 47308946 is about 6878.1498965928. The cubic root of 47308946 is about 361.6716139210.

The spelling of 47308946 in words is "forty-seven million, three hundred eight thousand, nine hundred forty-six".