72434311 has 2 divisors, whose sum is σ = 72434312. Its totient is φ = 72434310.

The previous prime is 72434293. The next prime is 72434347. The reversal of 72434311 is 11343427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72434311 - 2⁵ = 72434279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72434611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36217155 + 36217156.

It is an arithmetic number, because the mean of its divisors is an integer number (36217156).

Almost surely, 2^72434311 is an apocalyptic number.

72434311 is a deficient number, since it is larger than the sum of its proper divisors (1).

72434311 is an equidigital number, since it uses as much as digits as its factorization.

72434311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 25.

The square root of 72434311 is about 8510.8349179149. The cubic root of 72434311 is about 416.8515728289.

Adding to 72434311 its reverse (11343427), we get a palindrome (83777738).

The spelling of 72434311 in words is "seventy-two million, four hundred thirty-four thousand, three hundred eleven".