72637343 has 2 divisors, whose sum is σ = 72637344. Its totient is φ = 72637342.

The previous prime is 72637339. The next prime is 72637387. The reversal of 72637343 is 34373627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72637343 - 2² = 72637339 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72637333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36318671 + 36318672.

It is an arithmetic number, because the mean of its divisors is an integer number (36318672).

Almost surely, 2^72637343 is an apocalyptic number.

72637343 is a deficient number, since it is larger than the sum of its proper divisors (1).

72637343 is an equidigital number, since it uses as much as digits as its factorization.

72637343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63504, while the sum is 35.

The square root of 72637343 is about 8522.7544256537. The cubic root of 72637343 is about 417.2406851812.

The spelling of 72637343 in words is "seventy-two million, six hundred thirty-seven thousand, three hundred forty-three".