7740697 has 4 divisors (see below), whose sum is σ = 7820596. Its totient is φ = 7660800.

The previous prime is 7740671. The next prime is 7740727. The reversal of 7740697 is 7960477.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2446096 + 5294601 = 1564^2 + 2301^2 .

It is a cyclic number.

It is not a de Polignac number, because 7740697 - 2⁷ = 7740569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7740647) 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, 39804 + ... + 39997.

It is an arithmetic number, because the mean of its divisors is an integer number (1955149).

Almost surely, 2^7740697 is an apocalyptic number.

It is an amenable number.

7740697 is a deficient number, since it is larger than the sum of its proper divisors (79899).

7740697 is an equidigital number, since it uses as much as digits as its factorization.

7740697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79898.

The product of its (nonzero) digits is 74088, while the sum is 40.

The square root of 7740697 is about 2782.2108115669. The cubic root of 7740697 is about 197.8153654123.

The spelling of 7740697 in words is "seven million, seven hundred forty thousand, six hundred ninety-seven".