172929733 has 2 divisors, whose sum is σ = 172929734. Its totient is φ = 172929732.

The previous prime is 172929721. The next prime is 172929769. The reversal of 172929733 is 337929271.

172929733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168532324 + 4397409 = 12982^2 + 2097^2 .

It is a cyclic number.

It is not a de Polignac number, because 172929733 - 2⁹ = 172929221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172929733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172929793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86464866 + 86464867.

It is an arithmetic number, because the mean of its divisors is an integer number (86464867).

Almost surely, 2^172929733 is an apocalyptic number.

It is an amenable number.

172929733 is a deficient number, since it is larger than the sum of its proper divisors (1).

172929733 is an equidigital number, since it uses as much as digits as its factorization.

172929733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 142884, while the sum is 43.

The square root of 172929733 is about 13150.2750161356. The cubic root of 172929733 is about 557.1300157304.

The spelling of 172929733 in words is "one hundred seventy-two million, nine hundred twenty-nine thousand, seven hundred thirty-three".