45729727 has 4 divisors (see below), whose sum is σ = 47718000. Its totient is φ = 43741456.

The previous prime is 45729721. The next prime is 45729737. The reversal of 45729727 is 72792754.

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

It is a cyclic number.

It is not a de Polignac number, because 45729727 - 2¹¹ = 45727679 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 (45729721) 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, 994102 + ... + 994147.

It is an arithmetic number, because the mean of its divisors is an integer number (11929500).

Almost surely, 2^45729727 is an apocalyptic number.

45729727 is a deficient number, since it is larger than the sum of its proper divisors (1988273).

45729727 is a wasteful number, since it uses less digits than its factorization.

45729727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988272.

The product of its digits is 246960, while the sum is 43.

The square root of 45729727 is about 6762.3758398953. The cubic root of 45729727 is about 357.6016683146.

The spelling of 45729727 in words is "forty-five million, seven hundred twenty-nine thousand, seven hundred twenty-seven".