4642457 has 2 divisors, whose sum is σ = 4642458. Its totient is φ = 4642456.

The previous prime is 4642423. The next prime is 4642459. The reversal of 4642457 is 7542464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3904576 + 737881 = 1976^2 + 859^2 .

It is a cyclic number.

It is not a de Polignac number, because 4642457 - 2²⁰ = 3593881 is a prime.

Together with 4642459, 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 (4642459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321228 + 2321229.

It is an arithmetic number, because the mean of its divisors is an integer number (2321229).

Almost surely, 2^4642457 is an apocalyptic number.

It is an amenable number.

4642457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4642457 is an equidigital number, since it uses as much as digits as its factorization.

4642457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 32.

The square root of 4642457 is about 2154.6361641818. The cubic root of 4642457 is about 166.8204531657.

The spelling of 4642457 in words is "four million, six hundred forty-two thousand, four hundred fifty-seven".