7487397 has 20 divisors (see below), whose sum is σ = 11674080. Its totient is φ = 4773384.

The previous prime is 7487393. The next prime is 7487401. The reversal of 7487397 is 7937847.

It is an interprime number because it is at equal distance from previous prime (7487393) and next prime (7487401).

It is not a de Polignac number, because 7487397 - 2² = 7487393 is a prime.

It is a super-2 number, since 2×7487397² = 112122227671218, which contains 22 as substring.

7487397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7487393) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 147 + ... + 3872.

It is an arithmetic number, because the mean of its divisors is an integer number (583704).

Almost surely, 2^7487397 is an apocalyptic number.

It is an amenable number.

7487397 is a deficient number, since it is larger than the sum of its proper divisors (4186683).

7487397 is a wasteful number, since it uses less digits than its factorization.

7487397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054 (or 4045 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 7487397 is about 2736.3108376060. The cubic root of 7487397 is about 195.6336781936.

The spelling of 7487397 in words is "seven million, four hundred eighty-seven thousand, three hundred ninety-seven".