47618999 has 4 divisors (see below), whose sum is σ = 48780480. Its totient is φ = 46457520.

The previous prime is 47618981. The next prime is 47619049. The reversal of 47618999 is 99981674.

It is a happy number.

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 47618999 - 2⁸ = 47618743 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 47618999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47618929) 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, 580679 + ... + 580760.

It is an arithmetic number, because the mean of its divisors is an integer number (12195120).

Almost surely, 2^47618999 is an apocalyptic number.

47618999 is a deficient number, since it is larger than the sum of its proper divisors (1161481).

47618999 is a wasteful number, since it uses less digits than its factorization.

47618999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161480.

The product of its digits is 979776, while the sum is 53.

The square root of 47618999 is about 6900.6520706380. The cubic root of 47618999 is about 362.4600009770.

The spelling of 47618999 in words is "forty-seven million, six hundred eighteen thousand, nine hundred ninety-nine".