47439401 has 8 divisors (see below), whose sum is σ = 50599080. Its totient is φ = 44320768.

The previous prime is 47439383. The next prime is 47439437. The reversal of 47439401 is 10493474.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19360000 + 28079401 = 4400^2 + 5299^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-47439401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47439461) 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, 7856 + ... + 12513.

It is an arithmetic number, because the mean of its divisors is an integer number (6324885).

Almost surely, 2^47439401 is an apocalyptic number.

It is an amenable number.

47439401 is a deficient number, since it is larger than the sum of its proper divisors (3159679).

47439401 is a wasteful number, since it uses less digits than its factorization.

47439401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20523.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 47439401 is about 6887.6266594524. The cubic root of 47439401 is about 362.0037467943.

The spelling of 47439401 in words is "forty-seven million, four hundred thirty-nine thousand, four hundred one".