29918957 has 2 divisors, whose sum is σ = 29918958. Its totient is φ = 29918956.

The previous prime is 29918921. The next prime is 29918969. The reversal of 29918957 is 75981992.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29441476 + 477481 = 5426^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 29918957 - 2¹⁰ = 29917933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29918557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14959478 + 14959479.

It is an arithmetic number, because the mean of its divisors is an integer number (14959479).

Almost surely, 2^29918957 is an apocalyptic number.

It is an amenable number.

29918957 is a deficient number, since it is larger than the sum of its proper divisors (1).

29918957 is an equidigital number, since it uses as much as digits as its factorization.

29918957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 50.

The square root of 29918957 is about 5469.8223919978. The cubic root of 29918957 is about 310.4431988812.

The spelling of 29918957 in words is "twenty-nine million, nine hundred eighteen thousand, nine hundred fifty-seven".