7405961 has 2 divisors, whose sum is σ = 7405962. Its totient is φ = 7405960.

The previous prime is 7405943. The next prime is 7405963. The reversal of 7405961 is 1695047.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6405961 + 1000000 = 2531^2 + 1000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7405961 is a prime.

Together with 7405963, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7405963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3702980 + 3702981.

It is an arithmetic number, because the mean of its divisors is an integer number (3702981).

Almost surely, 2^7405961 is an apocalyptic number.

It is an amenable number.

7405961 is a deficient number, since it is larger than the sum of its proper divisors (1).

7405961 is an equidigital number, since it uses as much as digits as its factorization.

7405961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 7405961 is about 2721.3895347781. The cubic root of 7405961 is about 194.9218270922.

The spelling of 7405961 in words is "seven million, four hundred five thousand, nine hundred sixty-one".