47920369 has 4 divisors (see below), whose sum is σ = 54766144. Its totient is φ = 41074596.

The previous prime is 47920357. The next prime is 47920387. The reversal of 47920369 is 96302974.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96302974 = 2 ⋅48151487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47920369 is a prime.

It is a super-2 number, since 2×47920369² = 4592723530192322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47920309) 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, 3422877 + ... + 3422890.

It is an arithmetic number, because the mean of its divisors is an integer number (13691536).

Almost surely, 2^47920369 is an apocalyptic number.

It is an amenable number.

47920369 is a deficient number, since it is larger than the sum of its proper divisors (6845775).

47920369 is an equidigital number, since it uses as much as digits as its factorization.

47920369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6845774.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 47920369 is about 6922.4539724002. The cubic root of 47920369 is about 363.2230363145.

The spelling of 47920369 in words is "forty-seven million, nine hundred twenty thousand, three hundred sixty-nine".