90347029 has 2 divisors, whose sum is σ = 90347030. Its totient is φ = 90347028.

The previous prime is 90346987. The next prime is 90347053. The reversal of 90347029 is 92074309.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58874929 + 31472100 = 7673^2 + 5610^2 .

It is a cyclic number.

It is not a de Polignac number, because 90347029 - 2²¹ = 88249877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90346985 and 90347003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90347069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45173514 + 45173515.

It is an arithmetic number, because the mean of its divisors is an integer number (45173515).

Almost surely, 2^90347029 is an apocalyptic number.

It is an amenable number.

90347029 is a deficient number, since it is larger than the sum of its proper divisors (1).

90347029 is an equidigital number, since it uses as much as digits as its factorization.

90347029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 90347029 is about 9505.1054176164. The cubic root of 90347029 is about 448.7157275523.

The spelling of 90347029 in words is "ninety million, three hundred forty-seven thousand, twenty-nine".