72746029 has 2 divisors, whose sum is σ = 72746030. Its totient is φ = 72746028.

The previous prime is 72746027. The next prime is 72746039. The reversal of 72746029 is 92064727.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67683529 + 5062500 = 8227^2 + 2250^2 .

It is a cyclic number.

It is not a de Polignac number, because 72746029 - 2¹ = 72746027 is a prime.

Together with 72746027, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72746027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36373014 + 36373015.

It is an arithmetic number, because the mean of its divisors is an integer number (36373015).

Almost surely, 2^72746029 is an apocalyptic number.

It is an amenable number.

72746029 is a deficient number, since it is larger than the sum of its proper divisors (1).

72746029 is an equidigital number, since it uses as much as digits as its factorization.

72746029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 72746029 is about 8529.1282672967. The cubic root of 72746029 is about 417.4486848138.

The spelling of 72746029 in words is "seventy-two million, seven hundred forty-six thousand, twenty-nine".