2670361 has 4 divisors (see below), whose sum is σ = 2677300. Its totient is φ = 2663424.

The previous prime is 2670341. The next prime is 2670373. The reversal of 2670361 is 1630762.

2670361 = 1155² + 1156².

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 1336336 + 1334025 = 1156^2 + 1155^2 .

It is a 4-Lehmer number, since φ(2670361) divides (2670361-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 2670361 - 2¹¹ = 2668313 is a prime.

It is a Duffinian number.

2670361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2670301) 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, 2856 + ... + 3673.

It is an arithmetic number, because the mean of its divisors is an integer number (669325).

It is a Poulet number, since it divides 2^2670360-1.

2^2670361 is an apocalyptic number.

2670361 is the 1156-th centered square number.

It is an amenable number.

2670361 is a deficient number, since it is larger than the sum of its proper divisors (6939).

2670361 is an equidigital number, since it uses as much as digits as its factorization.

2670361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2670361 is about 1634.1239243093. The cubic root of 2670361 is about 138.7362630125.

The spelling of 2670361 in words is "two million, six hundred seventy thousand, three hundred sixty-one".