30841973 has 2 divisors, whose sum is σ = 30841974. Its totient is φ = 30841972.

The previous prime is 30841969. The next prime is 30841981. The reversal of 30841973 is 37914803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29571844 + 1270129 = 5438^2 + 1127^2 .

It is a cyclic number.

It is not a de Polignac number, because 30841973 - 2² = 30841969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30841913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15420986 + 15420987.

It is an arithmetic number, because the mean of its divisors is an integer number (15420987).

Almost surely, 2^30841973 is an apocalyptic number.

30841973 is the 2969-th centered heptagonal number.

It is an amenable number.

30841973 is a deficient number, since it is larger than the sum of its proper divisors (1).

30841973 is an equidigital number, since it uses as much as digits as its factorization.

30841973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 30841973 is about 5553.5549875733. The cubic root of 30841973 is about 313.6033675114.

The spelling of 30841973 in words is "thirty million, eight hundred forty-one thousand, nine hundred seventy-three".