7427057 has 4 divisors (see below), whose sum is σ = 8102256. Its totient is φ = 6751860.

The previous prime is 7427053. The next prime is 7427083. The reversal of 7427057 is 7507247.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7427057 - 2² = 7427053 is a prime.

It is a super-2 number, since 2×7427057² = 110322351362498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7427051) 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 in 3 ways as a sum of consecutive naturals, for example, 337583 + ... + 337604.

It is an arithmetic number, because the mean of its divisors is an integer number (2025564).

Almost surely, 2^7427057 is an apocalyptic number.

It is an amenable number.

7427057 is a deficient number, since it is larger than the sum of its proper divisors (675199).

7427057 is a wasteful number, since it uses less digits than its factorization.

7427057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675198.

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 7427057 is about 2725.2627396271. The cubic root of 7427057 is about 195.1067309643.

The spelling of 7427057 in words is "seven million, four hundred twenty-seven thousand, fifty-seven".