2391953 has 2 divisors, whose sum is σ = 2391954. Its totient is φ = 2391952.

The previous prime is 2391947. The next prime is 2391973. The reversal of 2391953 is 3591932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2362369 + 29584 = 1537^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 2391953 - 2⁴ = 2391937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2391973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195976 + 1195977.

It is an arithmetic number, because the mean of its divisors is an integer number (1195977).

2^2391953 is an apocalyptic number.

It is an amenable number.

2391953 is a deficient number, since it is larger than the sum of its proper divisors (1).

2391953 is an equidigital number, since it uses as much as digits as its factorization.

2391953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 32.

The square root of 2391953 is about 1546.5939997297. The cubic root of 2391953 is about 133.7367856045.

The spelling of 2391953 in words is "two million, three hundred ninety-one thousand, nine hundred fifty-three".