45927729 has 21 divisors (see below), whose sum is σ = 69135529. Its totient is φ = 30496500.

The previous prime is 45927719. The next prime is 45927751. The reversal of 45927729 is 92772954.

The square root of 45927729 is 6777.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 45927729 - 2⁵ = 45927697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45927719) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 182854 + ... + 183104.

Almost surely, 2^45927729 is an apocalyptic number.

45927729 is the 6777-th square number.

45927729 is the 3389-th centered octagonal number.

It is an amenable number.

45927729 is a deficient number, since it is larger than the sum of its proper divisors (23207800).

45927729 is an frugal number, since it uses more digits than its factorization.

45927729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 254 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The cubic root of 45927729 is about 358.1170434898.

It can be divided in two parts, 45927 and 729, that added together give a 6-th power (46656 = 6⁶).

The spelling of 45927729 in words is "forty-five million, nine hundred twenty-seven thousand, seven hundred twenty-nine".