7650457 has 2 divisors, whose sum is σ = 7650458. Its totient is φ = 7650456.

The previous prime is 7650451. The next prime is 7650479. The reversal of 7650457 is 7540567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6330256 + 1320201 = 2516^2 + 1149^2 .

It is an emirp because it is prime and its reverse (7540567) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7650457 is a prime.

It is a super-3 number, since 3×7650457³ (a number of 22 digits) contains 333 as substring.

It is equal to p₅₁₇₇₆₈ and since 7650457 and 517768 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (7650451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3825228 + 3825229.

It is an arithmetic number, because the mean of its divisors is an integer number (3825229).

Almost surely, 2^7650457 is an apocalyptic number.

It is an amenable number.

7650457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7650457 is an equidigital number, since it uses as much as digits as its factorization.

7650457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 7650457 is about 2765.9459503034. The cubic root of 7650457 is about 197.0436571715.

The spelling of 7650457 in words is "seven million, six hundred fifty thousand, four hundred fifty-seven".