7438957 has 4 divisors (see below), whose sum is σ = 7612000. Its totient is φ = 7265916.

The previous prime is 7438939. The next prime is 7438967. The reversal of 7438957 is 7598347.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7598347 = 19 ⋅399913.

It is a cyclic number.

It is not a de Polignac number, because 7438957 - 2⁷ = 7438829 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 172999 = 7438957 / (7 + 4 + 3 + 8 + 9 + 5 + 7).

It is a Duffinian number.

7438957 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7438927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86457 + ... + 86542.

It is an arithmetic number, because the mean of its divisors is an integer number (1903000).

Almost surely, 2^7438957 is an apocalyptic number.

It is an amenable number.

7438957 is a deficient number, since it is larger than the sum of its proper divisors (173043).

7438957 is a wasteful number, since it uses less digits than its factorization.

7438957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173042.

The product of its digits is 211680, while the sum is 43.

The square root of 7438957 is about 2727.4451415198. The cubic root of 7438957 is about 195.2108785957.

The spelling of 7438957 in words is "seven million, four hundred thirty-eight thousand, nine hundred fifty-seven".