72431063 has 2 divisors, whose sum is σ = 72431064. Its totient is φ = 72431062.

The previous prime is 72431057. The next prime is 72431113. The reversal of 72431063 is 36013427.

It is a weak prime.

It is an emirp because it is prime and its reverse (36013427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72431063 - 2¹² = 72426967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72431563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36215531 + 36215532.

It is an arithmetic number, because the mean of its divisors is an integer number (36215532).

Almost surely, 2^72431063 is an apocalyptic number.

72431063 is a deficient number, since it is larger than the sum of its proper divisors (1).

72431063 is an equidigital number, since it uses as much as digits as its factorization.

72431063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 72431063 is about 8510.6441001842. The cubic root of 72431063 is about 416.8453421070.

The spelling of 72431063 in words is "seventy-two million, four hundred thirty-one thousand, sixty-three".