47803397 has 8 divisors (see below), whose sum is σ = 49555800. Its totient is φ = 46057984.

The previous prime is 47803391. The next prime is 47803409. The reversal of 47803397 is 79330874.

It is a Cunningham number, because it is equal to 6914²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 47803396 = 1^2 + 6914^2 .

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 47803397 - 2⁴ = 47803381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47803391) 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, 15053 + ... + 17949.

It is an arithmetic number, because the mean of its divisors is an integer number (6194475).

Almost surely, 2^47803397 is an apocalyptic number.

It is an amenable number.

47803397 is a deficient number, since it is larger than the sum of its proper divisors (1752403).

47803397 is a wasteful number, since it uses less digits than its factorization.

47803397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 47803397 is about 6914.0000723170. Note that the first 4 decimals coincide. The cubic root of 47803397 is about 362.9272571392.

The spelling of 47803397 in words is "forty-seven million, eight hundred three thousand, three hundred ninety-seven".