7238397 has 4 divisors (see below), whose sum is σ = 9651200. Its totient is φ = 4825596.

The previous prime is 7238389. The next prime is 7238401. The reversal of 7238397 is 7938327.

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: 7938327 = 3 ⋅2646109.

It is not a de Polignac number, because 7238397 - 2³ = 7238389 is a prime.

It is a super-2 number, since 2×7238397² = 104788782259218, which contains 22 as substring.

It is a d-powerful number, because it can be written as 7⁷ + 2 + 3¹⁰ + 8³ + 3¹² + 9⁵ + 7⁸ .

It is a Duffinian number.

7238397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7238377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206397 + ... + 1206402.

It is an arithmetic number, because the mean of its divisors is an integer number (2412800).

Almost surely, 2^7238397 is an apocalyptic number.

It is an amenable number.

7238397 is a deficient number, since it is larger than the sum of its proper divisors (2412803).

7238397 is a wasteful number, since it uses less digits than its factorization.

7238397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412802.

The product of its digits is 63504, while the sum is 39.

The square root of 7238397 is about 2690.4269177958. The cubic root of 7238397 is about 193.4405268286.

The spelling of 7238397 in words is "seven million, two hundred thirty-eight thousand, three hundred ninety-seven".