72342029 has 2 divisors, whose sum is σ = 72342030. Its totient is φ = 72342028.

The previous prime is 72342013. The next prime is 72342031. The reversal of 72342029 is 92024327.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72216004 + 126025 = 8498^2 + 355^2 .

It is a cyclic number.

It is not a de Polignac number, because 72342029 - 2⁴ = 72342013 is a prime.

Together with 72342031, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 72341992 and 72342010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72342079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36171014 + 36171015.

It is an arithmetic number, because the mean of its divisors is an integer number (36171015).

Almost surely, 2^72342029 is an apocalyptic number.

It is an amenable number.

72342029 is a deficient number, since it is larger than the sum of its proper divisors (1).

72342029 is an equidigital number, since it uses as much as digits as its factorization.

72342029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 72342029 is about 8505.4117478227. The cubic root of 72342029 is about 416.6744733115.

The spelling of 72342029 in words is "seventy-two million, three hundred forty-two thousand, twenty-nine".