72375377 has 2 divisors, whose sum is σ = 72375378. Its totient is φ = 72375376.

The previous prime is 72375349. The next prime is 72375379. The reversal of 72375377 is 77357327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58507201 + 13868176 = 7649^2 + 3724^2 .

It is a cyclic number.

It is not a de Polignac number, because 72375377 - 2¹² = 72371281 is a prime.

Together with 72375379, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72375379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36187688 + 36187689.

It is an arithmetic number, because the mean of its divisors is an integer number (36187689).

Almost surely, 2^72375377 is an apocalyptic number.

It is an amenable number.

72375377 is a deficient number, since it is larger than the sum of its proper divisors (1).

72375377 is an equidigital number, since it uses as much as digits as its factorization.

72375377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216090, while the sum is 41.

The square root of 72375377 is about 8507.3719208696. The cubic root of 72375377 is about 416.7384892367.

The spelling of 72375377 in words is "seventy-two million, three hundred seventy-five thousand, three hundred seventy-seven".