3132729 has 8 divisors (see below), whose sum is σ = 4641120. Its totient is φ = 2088468.

The previous prime is 3132707. The next prime is 3132737. The reversal of 3132729 is 9272313.

It is not a de Polignac number, because 3132729 - 2⁷ = 3132601 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 116027 = 3132729 / (3 + 1 + 3 + 2 + 7 + 2 + 9).

It is not an unprimeable number, because it can be changed into a prime (3132749) 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, 57987 + ... + 58040.

It is an arithmetic number, because the mean of its divisors is an integer number (580140).

Almost surely, 2^3132729 is an apocalyptic number.

It is an amenable number.

3132729 is a deficient number, since it is larger than the sum of its proper divisors (1508391).

3132729 is a wasteful number, since it uses less digits than its factorization.

3132729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116036 (or 116030 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 3132729 is about 1769.9516942561. The cubic root of 3132729 is about 146.3213195871.

The spelling of 3132729 in words is "three million, one hundred thirty-two thousand, seven hundred twenty-nine".