30725377 has 2 divisors, whose sum is σ = 30725378. Its totient is φ = 30725376.

The previous prime is 30725369. The next prime is 30725393. The reversal of 30725377 is 77352703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20286016 + 10439361 = 4504^2 + 3231^2 .

It is a cyclic number.

It is not a de Polignac number, because 30725377 - 2³ = 30725369 is a prime.

It is not a weakly prime, because it can be changed into another prime (30725347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15362688 + 15362689.

It is an arithmetic number, because the mean of its divisors is an integer number (15362689).

Almost surely, 2^30725377 is an apocalyptic number.

It is an amenable number.

30725377 is a deficient number, since it is larger than the sum of its proper divisors (1).

30725377 is an equidigital number, since it uses as much as digits as its factorization.

30725377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30870, while the sum is 34.

The square root of 30725377 is about 5543.0476274338. The cubic root of 30725377 is about 313.2076830082.

The spelling of 30725377 in words is "thirty million, seven hundred twenty-five thousand, three hundred seventy-seven".