3478961 has 4 divisors (see below), whose sum is σ = 3526692. Its totient is φ = 3431232.

The previous prime is 3478949. The next prime is 3478991. The reversal of 3478961 is 1698743.

3478961 = 76² + 77² + ... + 221².

3478961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1698743 = 89 ⋅19087.

It can be written as a sum of positive squares in 2 ways, for example, as 2310400 + 1168561 = 1520^2 + 1081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3478961 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3478901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23756 + ... + 23901.

It is an arithmetic number, because the mean of its divisors is an integer number (881673).

Almost surely, 2^3478961 is an apocalyptic number.

It is an amenable number.

3478961 is a deficient number, since it is larger than the sum of its proper divisors (47731).

3478961 is an equidigital number, since it uses as much as digits as its factorization.

3478961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47730.

The product of its digits is 36288, while the sum is 38.

The square root of 3478961 is about 1865.1973085977. The cubic root of 3478961 is about 151.5246141391.

The spelling of 3478961 in words is "three million, four hundred seventy-eight thousand, nine hundred sixty-one".