72492073 has 2 divisors, whose sum is σ = 72492074. Its totient is φ = 72492072.

The previous prime is 72492053. The next prime is 72492107. The reversal of 72492073 is 37029427.

It is an a-pointer prime, because the next prime (72492107) can be obtained adding 72492073 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70509609 + 1982464 = 8397^2 + 1408^2 .

It is a cyclic number.

It is not a de Polignac number, because 72492073 - 2⁵ = 72492041 is a prime.

It is not a weakly prime, because it can be changed into another prime (72492053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36246036 + 36246037.

It is an arithmetic number, because the mean of its divisors is an integer number (36246037).

Almost surely, 2^72492073 is an apocalyptic number.

It is an amenable number.

72492073 is a deficient number, since it is larger than the sum of its proper divisors (1).

72492073 is an equidigital number, since it uses as much as digits as its factorization.

72492073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 72492073 is about 8514.2276807706. The cubic root of 72492073 is about 416.9623480622.

The spelling of 72492073 in words is "seventy-two million, four hundred ninety-two thousand, seventy-three".