47998415 has 4 divisors (see below), whose sum is σ = 57598104. Its totient is φ = 38398728.

The previous prime is 47998411. The next prime is 47998417. The reversal of 47998415 is 51489974.

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

It is a cyclic number.

It is not a de Polignac number, because 47998415 - 2² = 47998411 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 47998415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47998411) 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, 4799837 + ... + 4799846.

It is an arithmetic number, because the mean of its divisors is an integer number (14399526).

Almost surely, 2^47998415 is an apocalyptic number.

47998415 is a deficient number, since it is larger than the sum of its proper divisors (9599689).

47998415 is an equidigital number, since it uses as much as digits as its factorization.

47998415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9599688.

The product of its digits is 362880, while the sum is 47.

The square root of 47998415 is about 6928.0888418091. The cubic root of 47998415 is about 363.4201183333.

The spelling of 47998415 in words is "forty-seven million, nine hundred ninety-eight thousand, four hundred fifteen".