47772401 has 4 divisors (see below), whose sum is σ = 47810532. Its totient is φ = 47734272.

The previous prime is 47772391. The next prime is 47772409. The reversal of 47772401 is 10427774.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25200400 + 22572001 = 5020^2 + 4751^2 .

It is a cyclic number.

It is not a de Polignac number, because 47772401 - 2⁶ = 47772337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47772409) 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, 17120 + ... + 19713.

It is an arithmetic number, because the mean of its divisors is an integer number (11952633).

Almost surely, 2^47772401 is an apocalyptic number.

It is an amenable number.

47772401 is a deficient number, since it is larger than the sum of its proper divisors (38131).

47772401 is a wasteful number, since it uses less digits than its factorization.

47772401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38130.

The product of its (nonzero) digits is 10976, while the sum is 32.

The square root of 47772401 is about 6911.7581699594. The cubic root of 47772401 is about 362.8487987993.

The spelling of 47772401 in words is "forty-seven million, seven hundred seventy-two thousand, four hundred one".