2157763 has 2 divisors, whose sum is σ = 2157764. Its totient is φ = 2157762.

The previous prime is 2157739. The next prime is 2157767. The reversal of 2157763 is 3677512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2157763 - 2⁵ = 2157731 is a prime.

It is not a weakly prime, because it can be changed into another prime (2157767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1078881 + 1078882.

It is an arithmetic number, because the mean of its divisors is an integer number (1078882).

2^2157763 is an apocalyptic number.

2157763 is a deficient number, since it is larger than the sum of its proper divisors (1).

2157763 is an equidigital number, since it uses as much as digits as its factorization.

2157763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8820, while the sum is 31.

The square root of 2157763 is about 1468.9326056698. The cubic root of 2157763 is about 129.2214412619.

The spelling of 2157763 in words is "two million, one hundred fifty-seven thousand, seven hundred sixty-three".