29972977 has 2 divisors, whose sum is σ = 29972978. Its totient is φ = 29972976.

The previous prime is 29972951. The next prime is 29973011. The reversal of 29972977 is 77927992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26718561 + 3254416 = 5169^2 + 1804^2 .

It is a cyclic number.

It is not a de Polignac number, because 29972977 - 2¹¹ = 29970929 is a prime.

It is not a weakly prime, because it can be changed into another prime (29972477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14986488 + 14986489.

It is an arithmetic number, because the mean of its divisors is an integer number (14986489).

Almost surely, 2^29972977 is an apocalyptic number.

It is an amenable number.

29972977 is a deficient number, since it is larger than the sum of its proper divisors (1).

29972977 is an equidigital number, since it uses as much as digits as its factorization.

29972977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1000188, while the sum is 52.

The square root of 29972977 is about 5474.7581681751. The cubic root of 29972977 is about 310.6299261864.

The spelling of 29972977 in words is "twenty-nine million, nine hundred seventy-two thousand, nine hundred seventy-seven".