47998955 has 4 divisors (see below), whose sum is σ = 57598752. Its totient is φ = 38399160.

The previous prime is 47998949. The next prime is 47998957. The reversal of 47998955 is 55989974.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47998955 - 2¹⁸ = 47736811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47998955.

It is not an unprimeable number, because it can be changed into a prime (47998957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4799891 + ... + 4799900.

It is an arithmetic number, because the mean of its divisors is an integer number (14399688).

Almost surely, 2^47998955 is an apocalyptic number.

47998955 is a deficient number, since it is larger than the sum of its proper divisors (9599797).

47998955 is an equidigital number, since it uses as much as digits as its factorization.

47998955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9599796.

The product of its digits is 4082400, while the sum is 56.

The square root of 47998955 is about 6928.1278134861. The cubic root of 47998955 is about 363.4214811987.

The spelling of 47998955 in words is "forty-seven million, nine hundred ninety-eight thousand, nine hundred fifty-five".