7697381 has 8 divisors (see below), whose sum is σ = 7933464. Its totient is φ = 7463680.

The previous prime is 7697363. The next prime is 7697399. The reversal of 7697381 is 1837967.

It is an interprime number because it is at equal distance from previous prime (7697363) and next prime (7697399).

It can be written as a sum of positive squares in 4 ways, for example, as 1113025 + 6584356 = 1055^2 + 2566^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7697381 is a prime.

It is a super-2 number, since 2×7697381² = 118499348518322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7697321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7601 + ... + 8553.

It is an arithmetic number, because the mean of its divisors is an integer number (991683).

Almost surely, 2^7697381 is an apocalyptic number.

It is an amenable number.

7697381 is a deficient number, since it is larger than the sum of its proper divisors (236083).

7697381 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 7697381 = (1796783)₁₃.

7697381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its digits is 63504, while the sum is 41.

The square root of 7697381 is about 2774.4154339248. The cubic root of 7697381 is about 197.4456914181.

The spelling of 7697381 in words is "seven million, six hundred ninety-seven thousand, three hundred eighty-one".