7405901 has 2 divisors, whose sum is σ = 7405902. Its totient is φ = 7405900.

The previous prime is 7405891. The next prime is 7405903. The reversal of 7405901 is 1095047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5152900 + 2253001 = 2270^2 + 1501^2 .

It is an emirp because it is prime and its reverse (1095047) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7405901 is a prime.

Together with 7405903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7405903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3702950 + 3702951.

It is an arithmetic number, because the mean of its divisors is an integer number (3702951).

Almost surely, 2^7405901 is an apocalyptic number.

It is an amenable number.

7405901 is a deficient number, since it is larger than the sum of its proper divisors (1).

7405901 is an equidigital number, since it uses as much as digits as its factorization.

7405901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7405901 is about 2721.3785109756. The cubic root of 7405901 is about 194.9213006990.

The spelling of 7405901 in words is "seven million, four hundred five thousand, nine hundred one".