72102337 has 2 divisors, whose sum is σ = 72102338. Its totient is φ = 72102336.

The previous prime is 72102299. The next prime is 72102347. The reversal of 72102337 is 73320127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61402896 + 10699441 = 7836^2 + 3271^2 .

It is an emirp because it is prime and its reverse (73320127) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72102337 - 2¹¹ = 72100289 is a prime.

It is not a weakly prime, because it can be changed into another prime (72102347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36051168 + 36051169.

It is an arithmetic number, because the mean of its divisors is an integer number (36051169).

Almost surely, 2^72102337 is an apocalyptic number.

It is an amenable number.

72102337 is a deficient number, since it is larger than the sum of its proper divisors (1).

72102337 is an equidigital number, since it uses as much as digits as its factorization.

72102337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 72102337 is about 8491.3094985403. The cubic root of 72102337 is about 416.2137727251.

The spelling of 72102337 in words is "seventy-two million, one hundred two thousand, three hundred thirty-seven".