72986077 has 2 divisors, whose sum is σ = 72986078. Its totient is φ = 72986076.

The previous prime is 72986071. The next prime is 72986101. The reversal of 72986077 is 77068927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58155876 + 14830201 = 7626^2 + 3851^2 .

It is a cyclic number.

It is not a de Polignac number, because 72986077 - 2⁷ = 72985949 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72986071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36493038 + 36493039.

It is an arithmetic number, because the mean of its divisors is an integer number (36493039).

Almost surely, 2^72986077 is an apocalyptic number.

It is an amenable number.

72986077 is a deficient number, since it is larger than the sum of its proper divisors (1).

72986077 is an equidigital number, since it uses as much as digits as its factorization.

72986077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 72986077 is about 8543.1889245176. The cubic root of 72986077 is about 417.9073476567.

The spelling of 72986077 in words is "seventy-two million, nine hundred eighty-six thousand, seventy-seven".