48047999 has 4 divisors (see below), whose sum is σ = 48342936. Its totient is φ = 47753064.

The previous prime is 48047971. The next prime is 48048059. The reversal of 48047999 is 99974084.

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 48047999 - 2⁸ = 48047743 is a prime.

It is a super-2 number, since 2×48047999² = 4617220415808002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48047969) 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, 147224 + ... + 147549.

It is an arithmetic number, because the mean of its divisors is an integer number (12085734).

Almost surely, 2^48047999 is an apocalyptic number.

48047999 is a deficient number, since it is larger than the sum of its proper divisors (294937).

48047999 is a wasteful number, since it uses less digits than its factorization.

48047999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294936.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 48047999 is about 6931.6663941653. Note that the first 3 decimals coincide. The cubic root of 48047999 is about 363.5452170591.

The spelling of 48047999 in words is "forty-eight million, forty-seven thousand, nine hundred ninety-nine".