30520697 has 2 divisors, whose sum is σ = 30520698. Its totient is φ = 30520696.

The previous prime is 30520667. The next prime is 30520703. The reversal of 30520697 is 79602503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21058921 + 9461776 = 4589^2 + 3076^2 .

It is a cyclic number.

It is not a de Polignac number, because 30520697 - 2²⁴ = 13743481 is a prime.

It is equal to p_1888133 and since 30520697 and 1888133 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30520667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15260348 + 15260349.

It is an arithmetic number, because the mean of its divisors is an integer number (15260349).

Almost surely, 2^30520697 is an apocalyptic number.

It is an amenable number.

30520697 is a deficient number, since it is larger than the sum of its proper divisors (1).

30520697 is an equidigital number, since it uses as much as digits as its factorization.

30520697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 30520697 is about 5524.5540091486. The cubic root of 30520697 is about 312.5106453974.

The spelling of 30520697 in words is "thirty million, five hundred twenty thousand, six hundred ninety-seven".