6457798 has 4 divisors (see below), whose sum is σ = 9686700. Its totient is φ = 3228898.

The previous prime is 6457757. The next prime is 6457811. The reversal of 6457798 is 8977546.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8977546 = 2 ⋅4488773.

It is a super-3 number, since 3×6457798³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614448 + ... + 1614451.

It is an arithmetic number, because the mean of its divisors is an integer number (2421675).

Almost surely, 2^6457798 is an apocalyptic number.

6457798 is a deficient number, since it is larger than the sum of its proper divisors (3228902).

6457798 is a wasteful number, since it uses less digits than its factorization.

6457798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228901.

The product of its digits is 423360, while the sum is 46.

The square root of 6457798 is about 2541.2197858509. The cubic root of 6457798 is about 186.2207845711.

The spelling of 6457798 in words is "six million, four hundred fifty-seven thousand, seven hundred ninety-eight".