1947401 has 4 divisors (see below), whose sum is σ = 2061972. Its totient is φ = 1832832.

The previous prime is 1947397. The next prime is 1947419. The reversal of 1947401 is 1047491.

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 739600 + 1207801 = 860^2 + 1099^2 .

It is a cyclic number.

It is not a de Polignac number, because 1947401 - 2² = 1947397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1947431) 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, 57260 + ... + 57293.

It is an arithmetic number, because the mean of its divisors is an integer number (515493).

2^1947401 is an apocalyptic number.

It is an amenable number.

1947401 is a deficient number, since it is larger than the sum of its proper divisors (114571).

1947401 is a wasteful number, since it uses less digits than its factorization.

1947401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114570.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1947401 is about 1395.4931028135. The cubic root of 1947401 is about 124.8777685147.

The spelling of 1947401 in words is "one million, nine hundred forty-seven thousand, four hundred one".