47261649 has 16 divisors (see below), whose sum is σ = 68145408. Its totient is φ = 29021952.

The previous prime is 47261633. The next prime is 47261663. The reversal of 47261649 is 94616274.

It is a happy number.

47261649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47261649 - 2⁴ = 47261633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47261609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7462 + ... + 12255.

It is an arithmetic number, because the mean of its divisors is an integer number (4259088).

Almost surely, 2^47261649 is an apocalyptic number.

It is an amenable number.

47261649 is a deficient number, since it is larger than the sum of its proper divisors (20883759).

47261649 is a wasteful number, since it uses less digits than its factorization.

47261649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19784.

The product of its digits is 72576, while the sum is 39.

The square root of 47261649 is about 6874.7108302822. The cubic root of 47261649 is about 361.5510469705.

The spelling of 47261649 in words is "forty-seven million, two hundred sixty-one thousand, six hundred forty-nine".