72992677 has 2 divisors, whose sum is σ = 72992678. Its totient is φ = 72992676.

The previous prime is 72992671. The next prime is 72992687. The reversal of 72992677 is 77629927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69205761 + 3786916 = 8319^2 + 1946^2 .

It is an emirp because it is prime and its reverse (77629927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72992677 - 2¹¹ = 72990629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72992677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72992671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36496338 + 36496339.

It is an arithmetic number, because the mean of its divisors is an integer number (36496339).

Almost surely, 2^72992677 is an apocalyptic number.

It is an amenable number.

72992677 is a deficient number, since it is larger than the sum of its proper divisors (1).

72992677 is an equidigital number, since it uses as much as digits as its factorization.

72992677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 49.

The square root of 72992677 is about 8543.5751884091. The cubic root of 72992677 is about 417.9199441475.

The spelling of 72992677 in words is "seventy-two million, nine hundred ninety-two thousand, six hundred seventy-seven".