45921717 has 12 divisors (see below), whose sum is σ = 66431404. Its totient is φ = 30568320.

The previous prime is 45921713. The next prime is 45921719. The reversal of 45921717 is 71712954.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41486481 + 4435236 = 6441^2 + 2106^2 .

It is not a de Polignac number, because 45921717 - 2² = 45921713 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 (45921713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3117 + ... + 10077.

Almost surely, 2^45921717 is an apocalyptic number.

It is an amenable number.

45921717 is a deficient number, since it is larger than the sum of its proper divisors (20509687).

45921717 is a wasteful number, since it uses less digits than its factorization.

45921717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7700 (or 7697 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 45921717 is about 6776.5564263865. The cubic root of 45921717 is about 358.1014168109.

The spelling of 45921717 in words is "forty-five million, nine hundred twenty-one thousand, seven hundred seventeen".