29487961 has 2 divisors, whose sum is σ = 29487962. Its totient is φ = 29487960.

The previous prime is 29487947. The next prime is 29487967. The reversal of 29487961 is 16978492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27237961 + 2250000 = 5219^2 + 1500^2 .

It is a cyclic number.

It is not a de Polignac number, because 29487961 - 2⁵ = 29487929 is a prime.

It is not a weakly prime, because it can be changed into another prime (29487967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14743980 + 14743981.

It is an arithmetic number, because the mean of its divisors is an integer number (14743981).

Almost surely, 2^29487961 is an apocalyptic number.

It is an amenable number.

29487961 is a deficient number, since it is larger than the sum of its proper divisors (1).

29487961 is an equidigital number, since it uses as much as digits as its factorization.

29487961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 29487961 is about 5430.2818527218. The cubic root of 29487961 is about 308.9452918230.

The spelling of 29487961 in words is "twenty-nine million, four hundred eighty-seven thousand, nine hundred sixty-one".