29001457 has 2 divisors, whose sum is σ = 29001458. Its totient is φ = 29001456.

The previous prime is 29001431. The next prime is 29001463. The reversal of 29001457 is 75410092.

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., 28686736 + 314721 = 5356^2 + 561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29001457 is a prime.

It is not a weakly prime, because it can be changed into another prime (29001487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14500728 + 14500729.

It is an arithmetic number, because the mean of its divisors is an integer number (14500729).

Almost surely, 2^29001457 is an apocalyptic number.

It is an amenable number.

29001457 is a deficient number, since it is larger than the sum of its proper divisors (1).

29001457 is an equidigital number, since it uses as much as digits as its factorization.

29001457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 29001457 is about 5385.3000844893. The cubic root of 29001457 is about 307.2368277303.

The spelling of 29001457 in words is "twenty-nine million, one thousand, four hundred fifty-seven".