7457457 has 24 divisors (see below), whose sum is σ = 11708256. Its totient is φ = 4209408.

The previous prime is 7457419. The next prime is 7457477. The reversal of 7457457 is 7547547.

7457457 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7457457 - 2¹⁰ = 7456433 is a prime.

It is a super-2 number, since 2×7457457² = 111227329813698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7457477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13998 + ... + 14520.

It is an arithmetic number, because the mean of its divisors is an integer number (487844).

Almost surely, 2^7457457 is an apocalyptic number.

It is an amenable number.

7457457 is a deficient number, since it is larger than the sum of its proper divisors (4250799).

7457457 is a wasteful number, since it uses less digits than its factorization.

7457457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 630 counting only the distinct ones).

The product of its digits is 137200, while the sum is 39.

The square root of 7457457 is about 2730.8344878443. The cubic root of 7457457 is about 195.3725684510.

The spelling of 7457457 in words is "seven million, four hundred fifty-seven thousand, four hundred fifty-seven".