48720809 has 8 divisors (see below), whose sum is σ = 50381568. Its totient is φ = 47065680.

The previous prime is 48720803. The next prime is 48720821. The reversal of 48720809 is 90802784.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48720809 - 2¹⁶ = 48655273 is a prime.

It is a super-2 number, since 2×48720809² = 4747434459228962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48720803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23399 + ... + 25395.

It is an arithmetic number, because the mean of its divisors is an integer number (6297696).

Almost surely, 2^48720809 is an apocalyptic number.

It is an amenable number.

48720809 is a deficient number, since it is larger than the sum of its proper divisors (1660759).

48720809 is a wasteful number, since it uses less digits than its factorization.

48720809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2815.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 48720809 is about 6980.0292979328. The cubic root of 48720809 is about 365.2342500809.

The spelling of 48720809 in words is "forty-eight million, seven hundred twenty thousand, eight hundred nine".