29979497 has 2 divisors, whose sum is σ = 29979498. Its totient is φ = 29979496.

The previous prime is 29979491. The next prime is 29979529. The reversal of 29979497 is 79497992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25361296 + 4618201 = 5036^2 + 2149^2 .

It is a cyclic number.

It is not a de Polignac number, because 29979497 - 2¹² = 29975401 is a prime.

It is not a weakly prime, because it can be changed into another prime (29979491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14989748 + 14989749.

It is an arithmetic number, because the mean of its divisors is an integer number (14989749).

Almost surely, 2^29979497 is an apocalyptic number.

It is an amenable number.

29979497 is a deficient number, since it is larger than the sum of its proper divisors (1).

29979497 is an equidigital number, since it uses as much as digits as its factorization.

29979497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2571912, while the sum is 56.

The square root of 29979497 is about 5475.3535958877. The cubic root of 29979497 is about 310.6524482544.

The spelling of 29979497 in words is "twenty-nine million, nine hundred seventy-nine thousand, four hundred ninety-seven".