30679973 has 2 divisors, whose sum is σ = 30679974. Its totient is φ = 30679972.

The previous prime is 30679969. The next prime is 30679997. The reversal of 30679973 is 37997603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30492484 + 187489 = 5522^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 30679973 - 2² = 30679969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30679933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15339986 + 15339987.

It is an arithmetic number, because the mean of its divisors is an integer number (15339987).

Almost surely, 2^30679973 is an apocalyptic number.

It is an amenable number.

30679973 is a deficient number, since it is larger than the sum of its proper divisors (1).

30679973 is an equidigital number, since it uses as much as digits as its factorization.

30679973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 44.

The square root of 30679973 is about 5538.9505323662. The cubic root of 30679973 is about 313.0533275135.

The spelling of 30679973 in words is "thirty million, six hundred seventy-nine thousand, nine hundred seventy-three".