72406343 has 2 divisors, whose sum is σ = 72406344. Its totient is φ = 72406342.

The previous prime is 72406337. The next prime is 72406363. The reversal of 72406343 is 34360427.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72406343 - 2¹² = 72402247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72406303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36203171 + 36203172.

It is an arithmetic number, because the mean of its divisors is an integer number (36203172).

Almost surely, 2^72406343 is an apocalyptic number.

72406343 is a deficient number, since it is larger than the sum of its proper divisors (1).

72406343 is an equidigital number, since it uses as much as digits as its factorization.

72406343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 72406343 is about 8509.1916772394. The cubic root of 72406343 is about 416.7979149907.

The spelling of 72406343 in words is "seventy-two million, four hundred six thousand, three hundred forty-three".