72424633 has 2 divisors, whose sum is σ = 72424634. Its totient is φ = 72424632.

The previous prime is 72424621. The next prime is 72424643. The reversal of 72424633 is 33642427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46076944 + 26347689 = 6788^2 + 5133^2 .

It is a cyclic number.

It is not a de Polignac number, because 72424633 - 2¹⁷ = 72293561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72424595 and 72424604.

It is not a weakly prime, because it can be changed into another prime (72424613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36212316 + 36212317.

It is an arithmetic number, because the mean of its divisors is an integer number (36212317).

Almost surely, 2^72424633 is an apocalyptic number.

It is an amenable number.

72424633 is a deficient number, since it is larger than the sum of its proper divisors (1).

72424633 is an equidigital number, since it uses as much as digits as its factorization.

72424633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 31.

The square root of 72424633 is about 8510.2663295575. The cubic root of 72424633 is about 416.8330067233.

The spelling of 72424633 in words is "seventy-two million, four hundred twenty-four thousand, six hundred thirty-three".