7738997 has 4 divisors (see below), whose sum is σ = 8844576. Its totient is φ = 6633420.

The previous prime is 7738987. The next prime is 7739033. The reversal of 7738997 is 7998377.

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: 7998377 = 211 ⋅37907.

It is a cyclic number.

It is not a de Polignac number, because 7738997 - 2⁴ = 7738981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7738937) 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, 552779 + ... + 552792.

It is an arithmetic number, because the mean of its divisors is an integer number (2211144).

Almost surely, 2^7738997 is an apocalyptic number.

It is an amenable number.

7738997 is a deficient number, since it is larger than the sum of its proper divisors (1105579).

7738997 is a wasteful number, since it uses less digits than its factorization.

7738997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105578.

The product of its digits is 666792, while the sum is 50.

The square root of 7738997 is about 2781.9052823560. The cubic root of 7738997 is about 197.8008830497.

The spelling of 7738997 in words is "seven million, seven hundred thirty-eight thousand, nine hundred ninety-seven".