47634491 has 4 divisors (see below), whose sum is σ = 48169800. Its totient is φ = 47099184.

The previous prime is 47634487. The next prime is 47634511. The reversal of 47634491 is 19443674.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19443674 = 2 ⋅9721837.

It is a cyclic number.

It is not a de Polignac number, because 47634491 - 2² = 47634487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47634421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267521 + ... + 267698.

It is an arithmetic number, because the mean of its divisors is an integer number (12042450).

Almost surely, 2^47634491 is an apocalyptic number.

47634491 is a deficient number, since it is larger than the sum of its proper divisors (535309).

47634491 is an equidigital number, since it uses as much as digits as its factorization.

47634491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535308.

The product of its digits is 72576, while the sum is 38.

The square root of 47634491 is about 6901.7744819720. The cubic root of 47634491 is about 362.4993033677.

The spelling of 47634491 in words is "forty-seven million, six hundred thirty-four thousand, four hundred ninety-one".