47720097 has 12 divisors (see below), whose sum is σ = 71482320. Its totient is φ = 31813236.

The previous prime is 47720093. The next prime is 47720111. The reversal of 47720097 is 79002774.

It is not a de Polignac number, because 47720097 - 2² = 47720093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47720093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97947 + ... + 98432.

It is an arithmetic number, because the mean of its divisors is an integer number (5956860).

Almost surely, 2^47720097 is an apocalyptic number.

It is an amenable number.

47720097 is a deficient number, since it is larger than the sum of its proper divisors (23762223).

47720097 is an equidigital number, since it uses as much as digits as its factorization.

47720097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196394 (or 196382 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 47720097 is about 6907.9734365442. The cubic root of 47720097 is about 362.7163277935.

The spelling of 47720097 in words is "forty-seven million, seven hundred twenty thousand, ninety-seven".