45696821 has 8 divisors (see below), whose sum is σ = 47249664. Its totient is φ = 44148960.

The previous prime is 45696793. The next prime is 45696841. The reversal of 45696821 is 12869654.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-45696821 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 (45696841) 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, 31310 + ... + 32736.

It is an arithmetic number, because the mean of its divisors is an integer number (5906208).

Almost surely, 2^45696821 is an apocalyptic number.

It is an amenable number.

45696821 is a deficient number, since it is larger than the sum of its proper divisors (1552843).

45696821 is a wasteful number, since it uses less digits than its factorization.

45696821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491.

The product of its digits is 103680, while the sum is 41.

The square root of 45696821 is about 6759.9423814112. The cubic root of 45696821 is about 357.5158739100.

The spelling of 45696821 in words is "forty-five million, six hundred ninety-six thousand, eight hundred twenty-one".