72393049 has 2 divisors, whose sum is σ = 72393050. Its totient is φ = 72393048.

The previous prime is 72393047. The next prime is 72393103. The reversal of 72393049 is 94039327.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66536649 + 5856400 = 8157^2 + 2420^2 .

It is a cyclic number.

It is not a de Polignac number, because 72393049 - 2¹ = 72393047 is a prime.

Together with 72393047, it forms a pair of twin primes.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 72392999 and 72393017.

It is not a weakly prime, because it can be changed into another prime (72393047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36196524 + 36196525.

It is an arithmetic number, because the mean of its divisors is an integer number (36196525).

Almost surely, 2^72393049 is an apocalyptic number.

It is an amenable number.

72393049 is a deficient number, since it is larger than the sum of its proper divisors (1).

72393049 is an equidigital number, since it uses as much as digits as its factorization.

72393049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 72393049 is about 8508.4104861014. The cubic root of 72393049 is about 416.7724050221.

The spelling of 72393049 in words is "seventy-two million, three hundred ninety-three thousand, forty-nine".