45685669 has 2 divisors, whose sum is σ = 45685670. Its totient is φ = 45685668.

The previous prime is 45685597. The next prime is 45685687. The reversal of 45685669 is 96658654.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32069569 + 13616100 = 5663^2 + 3690^2 .

It is a cyclic number.

It is not a de Polignac number, because 45685669 - 2¹¹ = 45683621 is a prime.

It is a super-2 number, since 2×45685669² = 4174360703955122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45685699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22842834 + 22842835.

It is an arithmetic number, because the mean of its divisors is an integer number (22842835).

Almost surely, 2^45685669 is an apocalyptic number.

It is an amenable number.

45685669 is a deficient number, since it is larger than the sum of its proper divisors (1).

45685669 is an equidigital number, since it uses as much as digits as its factorization.

45685669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 49.

The square root of 45685669 is about 6759.1174719781. The cubic root of 45685669 is about 357.4867884338.

The spelling of 45685669 in words is "forty-five million, six hundred eighty-five thousand, six hundred sixty-nine".