47404649 has 2 divisors, whose sum is σ = 47404650. Its totient is φ = 47404648.

The previous prime is 47404627. The next prime is 47404657. The reversal of 47404649 is 94640474.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47169424 + 235225 = 6868^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 47404649 - 2⁸ = 47404393 is a prime.

It is not a weakly prime, because it can be changed into another prime (47404849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23702324 + 23702325.

It is an arithmetic number, because the mean of its divisors is an integer number (23702325).

Almost surely, 2^47404649 is an apocalyptic number.

It is an amenable number.

47404649 is a deficient number, since it is larger than the sum of its proper divisors (1).

47404649 is an equidigital number, since it uses as much as digits as its factorization.

47404649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 47404649 is about 6885.1034124405. The cubic root of 47404649 is about 361.9153292404.

The spelling of 47404649 in words is "forty-seven million, four hundred four thousand, six hundred forty-nine".