47946609 has 12 divisors (see below), whose sum is σ = 70563636. Its totient is φ = 31360992.

The previous prime is 47946583. The next prime is 47946617. The reversal of 47946609 is 90664974.

It can be written as a sum of positive squares in 2 ways, for example, as 14630625 + 33315984 = 3825^2 + 5772^2 .

It is not a de Polignac number, because 47946609 - 2¹² = 47942513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47946629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49782 + ... + 50735.

It is an arithmetic number, because the mean of its divisors is an integer number (5880303).

Almost surely, 2^47946609 is an apocalyptic number.

It is an amenable number.

47946609 is a deficient number, since it is larger than the sum of its proper divisors (22617027).

47946609 is a wasteful number, since it uses less digits than its factorization.

47946609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100576 (or 100573 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 47946609 is about 6924.3489946709. The cubic root of 47946609 is about 363.2893215120.

The spelling of 47946609 in words is "forty-seven million, nine hundred forty-six thousand, six hundred nine".