3690697 has 4 divisors (see below), whose sum is σ = 3780756. Its totient is φ = 3600640.

The previous prime is 3690691. The next prime is 3690703. The reversal of 3690697 is 7960963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7960963 = 113 ⋅70451.

It is an interprime number because it is at equal distance from previous prime (3690691) and next prime (3690703).

It can be written as a sum of positive squares in 2 ways, for example, as 1648656 + 2042041 = 1284^2 + 1429^2 .

It is a cyclic number.

It is not a de Polignac number, because 3690697 - 2³ = 3690689 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3690691) 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, 44968 + ... + 45049.

It is an arithmetic number, because the mean of its divisors is an integer number (945189).

Almost surely, 2^3690697 is an apocalyptic number.

It is an amenable number.

3690697 is a deficient number, since it is larger than the sum of its proper divisors (90059).

3690697 is an equidigital number, since it uses as much as digits as its factorization.

3690697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90058.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 3690697 is about 1921.1186845169. The cubic root of 3690697 is about 154.5383000463.

The spelling of 3690697 in words is "three million, six hundred ninety thousand, six hundred ninety-seven".