72698027 has 2 divisors, whose sum is σ = 72698028. Its totient is φ = 72698026.

The previous prime is 72698023. The next prime is 72698051. The reversal of 72698027 is 72089627.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72698027 - 2² = 72698023 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72698023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36349013 + 36349014.

It is an arithmetic number, because the mean of its divisors is an integer number (36349014).

Almost surely, 2^72698027 is an apocalyptic number.

72698027 is a deficient number, since it is larger than the sum of its proper divisors (1).

72698027 is an equidigital number, since it uses as much as digits as its factorization.

72698027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 72698027 is about 8526.3137990576. The cubic root of 72698027 is about 417.3568457533.

Subtracting from 72698027 its reverse (72089627), we obtain a square (608400 = 780²).

The spelling of 72698027 in words is "seventy-two million, six hundred ninety-eight thousand, twenty-seven".