47409679 has 2 divisors, whose sum is σ = 47409680. Its totient is φ = 47409678.

The previous prime is 47409671. The next prime is 47409689. The reversal of 47409679 is 97690474.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47409679 - 2³ = 47409671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47409671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23704839 + 23704840.

It is an arithmetic number, because the mean of its divisors is an integer number (23704840).

Almost surely, 2^47409679 is an apocalyptic number.

47409679 is a deficient number, since it is larger than the sum of its proper divisors (1).

47409679 is an equidigital number, since it uses as much as digits as its factorization.

47409679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 47409679 is about 6885.4686841202. The cubic root of 47409679 is about 361.9281294598.

The spelling of 47409679 in words is "forty-seven million, four hundred nine thousand, six hundred seventy-nine".