7852457 has 2 divisors, whose sum is σ = 7852458. Its totient is φ = 7852456.

The previous prime is 7852433. The next prime is 7852459. The reversal of 7852457 is 7542587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6651241 + 1201216 = 2579^2 + 1096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7852457 is a prime.

It is a super-2 number, since 2×7852457² = 123322161873698, which contains 22 as substring.

Together with 7852459, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7852457.

It is not a weakly prime, because it can be changed into another prime (7852459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3926228 + 3926229.

It is an arithmetic number, because the mean of its divisors is an integer number (3926229).

Almost surely, 2^7852457 is an apocalyptic number.

It is an amenable number.

7852457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7852457 is an equidigital number, since it uses as much as digits as its factorization.

7852457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 78400, while the sum is 38.

The square root of 7852457 is about 2802.2235813725. The cubic root of 7852457 is about 198.7628379298.

The spelling of 7852457 in words is "seven million, eight hundred fifty-two thousand, four hundred fifty-seven".