47309012 has 24 divisors (see below), whose sum is σ = 87507840. Its totient is φ = 22317120.

The previous prime is 47308979. The next prime is 47309027. The reversal of 47309012 is 21090374.

It is a super-2 number, since 2×47309012² = 4476285232832288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19448 + ... + 21744.

It is an arithmetic number, because the mean of its divisors is an integer number (3646160).

Almost surely, 2^47309012 is an apocalyptic number.

It is an amenable number.

47309012 is a deficient number, since it is larger than the sum of its proper divisors (40198828).

47309012 is a wasteful number, since it uses less digits than its factorization.

47309012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 2589 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 47309012 is about 6878.1546943930. The cubic root of 47309012 is about 361.6717821084.

Adding to 47309012 its reverse (21090374), we get a palindrome (68399386).

The spelling of 47309012 in words is "forty-seven million, three hundred nine thousand, twelve".