3620291 has 2 divisors, whose sum is σ = 3620292. Its totient is φ = 3620290.

The previous prime is 3620257. The next prime is 3620293. The reversal of 3620291 is 1920263.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3620291 is a prime.

Together with 3620293, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (3620293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810145 + 1810146.

It is an arithmetic number, because the mean of its divisors is an integer number (1810146).

Almost surely, 2^3620291 is an apocalyptic number.

3620291 is a deficient number, since it is larger than the sum of its proper divisors (1).

3620291 is an equidigital number, since it uses as much as digits as its factorization.

3620291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 3620291 is about 1902.7062306094. The cubic root of 3620291 is about 153.5492950357.

The spelling of 3620291 in words is "three million, six hundred twenty thousand, two hundred ninety-one".